feat: add Discord webhook & centre point logic; refactor: remove unused modules & fix KInput makefile

[StaticSweep]

NOTE: Pulling these changes will update your DLL files, you will manually have to compile them again if you did so already!

• Created a DiscordNotification class to send yourself pings upon certain scripting events.
  • This sends a post request to the WebHook URL stated in the secrets.properties file (gitignored).
• Added click closest to centre logic in the ColourContours class to prevent selecting an arbitrary first ChromaObj by detection.
  • The closest object to the centre is now the default logic for the PointSelector actions utility.
• The AccountManager, .chromascape directory and CVTemplates.sh have been removed due to not being used and support not being planned.
• Several changes have been made to the demo scripts including using Minimap.getXP in the DemoAgilityScript, and better conformity to professional code style, namely for magic numbers and removal of redundant constructors.
• KInput's makefile has been changed to remove redundant references to MinHook.
• Added sendFunctionKey() in VirtualKeyboardUtils and reduced code duplication in Kinput.java.

Misc JavaDoc corrections have been made across the board.