RE-ADDED: Fade() function to avoid multiple breaking changes

Probably there is a better way to do this but this is a temporary solution for backward compatibility

src/raylib.h

@@ -1190,6 +1190,7 @@ RLAPI void DrawTexturePro(Texture2D texture, Rectangle sourceRec, Rectangle dest
 RLAPI void DrawTextureNPatch(Texture2D texture, NPatchInfo nPatchInfo, Rectangle destRec, Vector2 origin, float rotation, Color tint);  // Draws a texture (or part of it) that stretches or shrinks nicely
 
 // Color/pixel related functions
+RLAPI Color Fade(Color color, float alpha);                                 // Returns color with alpha applied, alpha goes from 0.0f to 1.0f
 RLAPI int ColorToInt(Color color);                                          // Returns hexadecimal value for a Color
 RLAPI Vector4 ColorNormalize(Color color);                                  // Returns Color normalized as float [0..1]
 RLAPI Color ColorFromNormalized(Vector4 normalized);                        // Returns Color from normalized values [0..1]