update examples with difficulty stars (#4694)

* update examples with difficulty stars

* manual fix script issues

* manual fix script issues

examples/shapes/shapes_basic_shapes.c

@@ -2,6 +2,8 @@
 *
 *   raylib [shapes] example - Draw basic shapes 2d (rectangle, circle, line...)
 *
+*   Example complexity rating: [★☆☆☆] 1/4
+*
 *   Example originally created with raylib 1.0, last time updated with raylib 4.2
 *
 *   Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,

examples/shapes/shapes_bouncing_ball.c

@@ -2,6 +2,8 @@
 *
 *   raylib [shapes] example - bouncing ball
 *
+*   Example complexity rating: [★☆☆☆] 1/4
+*
 *   Example originally created with raylib 2.5, last time updated with raylib 2.5
 *
 *   Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,

examples/shapes/shapes_collision_area.c

@@ -2,6 +2,8 @@
 *
 *   raylib [shapes] example - collision area
 *
+*   Example complexity rating: [★★☆☆] 2/4
+*
 *   Example originally created with raylib 2.5, last time updated with raylib 2.5
 *
 *   Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,

examples/shapes/shapes_colors_palette.c

@@ -2,6 +2,8 @@
 *
 *   raylib [shapes] example - Colors palette
 *
+*   Example complexity rating: [★★☆☆] 2/4
+*
 *   Example originally created with raylib 1.0, last time updated with raylib 2.5
 *
 *   Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,

examples/shapes/shapes_draw_circle_sector.c

@@ -2,6 +2,8 @@
 *
 *   raylib [shapes] example - draw circle sector (with gui options)
 *
+*   Example complexity rating: [★★★☆] 3/4
+*
 *   Example originally created with raylib 2.5, last time updated with raylib 2.5
 *
 *   Example contributed by Vlad Adrian (@demizdor) and reviewed by Ramon Santamaria (@raysan5)

examples/shapes/shapes_draw_rectangle_rounded.c

@@ -2,6 +2,8 @@
 *
 *   raylib [shapes] example - draw rectangle rounded (with gui options)
 *
+*   Example complexity rating: [★★★☆] 3/4
+*
 *   Example originally created with raylib 2.5, last time updated with raylib 2.5
 *
 *   Example contributed by Vlad Adrian (@demizdor) and reviewed by Ramon Santamaria (@raysan5)

examples/shapes/shapes_draw_ring.c

@@ -2,6 +2,8 @@
 *
 *   raylib [shapes] example - draw ring (with gui options)
 *
+*   Example complexity rating: [★★★☆] 3/4
+*
 *   Example originally created with raylib 2.5, last time updated with raylib 2.5
 *
 *   Example contributed by Vlad Adrian (@demizdor) and reviewed by Ramon Santamaria (@raysan5)

examples/shapes/shapes_easings_ball_anim.c

@@ -2,6 +2,8 @@
 *
 *   raylib [shapes] example - easings ball anim
 *
+*   Example complexity rating: [★★☆☆] 2/4
+*
 *   Example originally created with raylib 2.5, last time updated with raylib 2.5
 *
 *   Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,

examples/shapes/shapes_easings_box_anim.c

@@ -2,6 +2,8 @@
 *
 *   raylib [shapes] example - easings box anim
 *
+*   Example complexity rating: [★★☆☆] 2/4
+*
 *   Example originally created with raylib 2.5, last time updated with raylib 2.5
 *
 *   Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,

examples/shapes/shapes_easings_rectangle_array.c

@@ -2,6 +2,8 @@
 *
 *   raylib [shapes] example - easings rectangle array
 *
+*   Example complexity rating: [★★★☆] 3/4
+*
 *   NOTE: This example requires 'easings.h' library, provided on raylib/src. Just copy
 *   the library to same directory as example or make sure it's available on include path.
 *

examples/shapes/shapes_following_eyes.c

@@ -2,6 +2,8 @@
 *
 *   raylib [shapes] example - following eyes
 *
+*   Example complexity rating: [★★☆☆] 2/4
+*
 *   Example originally created with raylib 2.5, last time updated with raylib 2.5
 *
 *   Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,

examples/shapes/shapes_lines_bezier.c

@@ -2,6 +2,8 @@
 *
 *   raylib [shapes] example - Cubic-bezier lines
 *
+*   Example complexity rating: [★☆☆☆] 1/4
+*
 *   Example originally created with raylib 1.7, last time updated with raylib 1.7
 *
 *   Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,

examples/shapes/shapes_logo_raylib.c

@@ -2,6 +2,8 @@
 *
 *   raylib [shapes] example - Draw raylib logo using basic shapes
 *
+*   Example complexity rating: [★☆☆☆] 1/4
+*
 *   Example originally created with raylib 1.0, last time updated with raylib 1.0
 *
 *   Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,

examples/shapes/shapes_logo_raylib_anim.c

@@ -2,6 +2,8 @@
 *
 *   raylib [shapes] example - raylib logo animation
 *
+*   Example complexity rating: [★★☆☆] 2/4
+*
 *   Example originally created with raylib 2.5, last time updated with raylib 4.0
 *
 *   Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,

examples/shapes/shapes_rectangle_scaling.c

@@ -2,6 +2,8 @@
 *
 *   raylib [shapes] example - rectangle scaling by mouse
 *
+*   Example complexity rating: [★★☆☆] 2/4
+*
 *   Example originally created with raylib 2.5, last time updated with raylib 2.5
 *
 *   Example contributed by Vlad Adrian (@demizdor) and reviewed by Ramon Santamaria (@raysan5)

examples/shapes/shapes_splines_drawing.c

@@ -2,6 +2,8 @@
 *
 *   raylib [shapes] example - splines drawing
 *
+*   Example complexity rating: [★★★☆] 3/4
+*
 *   Example originally created with raylib 5.0, last time updated with raylib 5.0
 *
 *   Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,

examples/shapes/shapes_top_down_lights.c

@@ -2,6 +2,8 @@
 *
 *   raylib [shapes] example - top down lights
 *
+*   Example complexity rating: [★★★★] 4/4
+*
 *   Example originally created with raylib 4.2, last time updated with raylib 4.2
 *
 *   Example contributed by Vlad Adrian (@demizdor) and reviewed by Ramon Santamaria (@raysan5)