Update codestyle of cswm.inc

[Nord1cWarr1or]

• The include formatting has been redone to match the official amxmodx includes, including support for displaying amxxpawn syntax through the corresponding Klippy extension for VSCode.
• String function arguments have been made constant.
• Argument names now start with a lowercase letter.

• Added basic description of functions

  Made with support of ChatGPT-3.5