Fixed AdminESP and documented some functions.

Changed Clockwork:GetAdminESPInfo to fix it being unable to find non-humanoid models with observer. (Basically applied the fix from my plugin to the framework).

Documented a few functions.

Clockwork:GetAdminESPInfo
Clockwork:GetPostProgressBarInfo
Clockwork:GetCustomCharacterOptions
Clockwork:GetCustomCharacterButtons
Clockwork:GetProgressBarInfo()
Clockwork:GetPlayerInfoText
Clockwork:GetTargetPlayerFadeDistance
Clockwork:GetTargetPlayerText