update examples with difficulty stars (#4694)

* update examples with difficulty stars

* manual fix script issues

* manual fix script issues

examples/text/text_codepoints_loading.c

@@ -2,6 +2,8 @@
 *
 *   raylib [text] example - Codepoints loading
 *
+*   Example complexity rating: [★★★☆] 3/4
+*
 *   Example originally created with raylib 4.2, last time updated with raylib 2.5
 *
 *   Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,

examples/text/text_draw_3d.c

@@ -2,6 +2,8 @@
 *
 *   raylib [text] example - Draw 3d
 *
+*   Example complexity rating: [★★★★] 4/4
+*
 *   NOTE: Draw a 2D text in 3D space, each letter is drawn in a quad (or 2 quads if backface is set)
 *   where the texture coodinates of each quad map to the texture coordinates of the glyphs
 *   inside the font texture.

examples/text/text_font_filters.c

@@ -2,6 +2,8 @@
 *
 *   raylib [text] example - Font filters
 *
+*   Example complexity rating: [★★☆☆] 2/4
+*
 *   NOTE: After font loading, font texture atlas filter could be configured for a softer
 *   display of the font when scaling it to different sizes, that way, it's not required
 *   to generate multiple fonts at multiple sizes (as long as the scaling is not very different)

examples/text/text_font_loading.c

@@ -2,6 +2,8 @@
 *
 *   raylib [text] example - Font loading
 *
+*   Example complexity rating: [★☆☆☆] 1/4
+*
 *   NOTE: raylib can load fonts from multiple input file formats:
 *
 *     - TTF/OTF > Sprite font atlas is generated on loading, user can configure

examples/text/text_font_sdf.c

@@ -2,6 +2,8 @@
 *
 *   raylib [text] example - Font SDF loading
 *
+*   Example complexity rating: [★★★☆] 3/4
+*
 *   Example originally created with raylib 1.3, last time updated with raylib 4.0
 *
 *   Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,

examples/text/text_font_spritefont.c

@@ -2,6 +2,8 @@
 *
 *   raylib [text] example - Sprite font loading
 *
+*   Example complexity rating: [★☆☆☆] 1/4
+*
 *   NOTE: Sprite fonts should be generated following this conventions:
 *
 *     - Characters must be ordered starting with character 32 (Space)

examples/text/text_format_text.c

@@ -2,6 +2,8 @@
 *
 *   raylib [text] example - Text formatting
 *
+*   Example complexity rating: [★☆☆☆] 1/4
+*
 *   Example originally created with raylib 1.1, last time updated with raylib 3.0
 *
 *   Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,

examples/text/text_input_box.c

@@ -2,6 +2,8 @@
 *
 *   raylib [text] example - Input Box
 *
+*   Example complexity rating: [★★☆☆] 2/4
+*
 *   Example originally created with raylib 1.7, last time updated with raylib 3.5
 *
 *   Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,

examples/text/text_raylib_fonts.c

@@ -2,6 +2,8 @@
 *
 *   raylib [text] example - raylib fonts loading
 *
+*   Example complexity rating: [★☆☆☆] 1/4
+*
 *   NOTE: raylib is distributed with some free to use fonts (even for commercial pourposes!)
 *         To view details and credits for those fonts, check raylib license file
 *

examples/text/text_rectangle_bounds.c

@@ -2,6 +2,8 @@
 *
 *   raylib [text] example - Rectangle bounds
 *
+*   Example complexity rating: [★★★★] 4/4
+*
 *   Example originally created with raylib 2.5, last time updated with raylib 4.0
 *
 *   Example contributed by Vlad Adrian (@demizdor) and reviewed by Ramon Santamaria (@raysan5)

examples/text/text_unicode.c

@@ -2,6 +2,8 @@
 *
 *   raylib [text] example - Unicode
 *
+*   Example complexity rating: [★★★★] 4/4
+*
 *   Example originally created with raylib 2.5, last time updated with raylib 4.0
 *
 *   Example contributed by Vlad Adrian (@demizdor) and reviewed by Ramon Santamaria (@raysan5)

examples/text/text_writing_anim.c

@@ -2,6 +2,8 @@
 *
 *   raylib [text] example - Text Writing Animation
 *
+*   Example complexity rating: [★★☆☆] 2/4
+*
 *   Example originally created with raylib 1.4, last time updated with raylib 1.4
 *
 *   Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,