Temporary Entities section in Wiki: Remove Color class since RGBA exists now in the API

[Outerbeast]

The section covering Color class needs to get removed since RGBA class exists natively for this purpose https://github.com/baso88/SC_AngelScript/wiki/Temporary-Entities#code-comments Every TE page that has a sample function that uses a Color parameter needs to have the example function parameters changed from Color to RGBA Example: Color c=PURPLE should be changed to something like RGBA c=RGBA_WHITE

Link to RGBA class https://baso88.github.io/SC_AngelScript/docs/RGBA.htm