Updated structure, changed some files and values.

"vJass Dialog System" has been renamed to "vJass Dialog"
"vJass Selection System" has been renamed to "vJass Selection"

vJass Setup:
	Fixed an issue in the InitHeroes function that crashed the thread.

vJass Pick Game Mode:
	New file that manages Selection data.

vJass Respawn Destructables:
	GetTriggerWidget() replaced with GetDyingDestructable to rectify the type difference.