Function moved to `examples/textures/textures_polygon.c`, so users can learn from the implementation and create custom variants as required.

CONVENTIONS:
  - Functions are always self-contained, no function use another raymath function inside, required code is directly re-implemented inside
  - Functions input parameters are always received by value
  - Functions use always a "result" variable for return
  - Functions are always defined inline
  - Angles are always in radians (DEG2RAD/RAD2DEG macros provided for convenience)

* adds DrawTexturedPoly with example

* the actual example ... ahem

* moved DrawTexturePoly to textures function and example
NB function name changed to fit with other DrawTextureXXX functions
(no "d" )

Co-authored-by: codifies <you@example.com>

This function was renamed for consistency in raylib 3.0, just unified all examples to use TextFormat() instead of FormatText()

Probably more useful...

Examples have been renamed for coherence with raylib modules and test
examples have been merged into examples folder.

Check CHANGELOG for the list of changes in this release!

View CHANGELOG for details