adding the shapes_logo_raylib example and adding the missing press checks in the core_input_mouse example

I added the shapes_logo_raylib example.
I added the missing MOUSE_BUTTON_SIDE,MOUSE_BUTTON_EXTRA,MOUSE_BUTTON_FORWARD,MOUSE_BUTTON_BACK press checks.

note: my mouse doesn't have the "forward" and "back" buttons, so I couldn't test if they work

Author: sDos280

examples/core/core_input_mouse.py

@@ -44,25 +44,18 @@
 
     if is_mouse_button_pressed(MOUSE_BUTTON_LEFT):
         ball_color = MAROON
-        print("MOUSE_BUTTON_LEFT")
     elif is_mouse_button_pressed(MOUSE_BUTTON_MIDDLE):
         ball_color = LIME
-        print("MOUSE_BUTTON_MIDDLE")
     elif is_mouse_button_pressed(MOUSE_BUTTON_RIGHT):
         ball_color = DARKBLUE
-        print("MOUSE_BUTTON_RIGHT")
     elif is_mouse_button_pressed(MOUSE_BUTTON_SIDE):
         ball_color = PURPLE
-        print("MOUSE_BUTTON_SIDE")
     elif is_mouse_button_pressed(MOUSE_BUTTON_EXTRA):
         ball_color = YELLOW
-        print("MOUSE_BUTTON_EXTRA")
     elif is_mouse_button_pressed(MOUSE_BUTTON_FORWARD):
         ball_color = ORANGE
-        print("MOUSE_BUTTON_FORWARD")
     elif is_mouse_button_pressed(MOUSE_BUTTON_BACK):
         ball_color = BEIGE
-        print("MOUSE_BUTTON_BACK")
     # Draw
     begin_drawing()