Add typed variables

[Zezombye]

Remove declaring variables with the #!declareGlobal/Player directive, instead do it using the new globalvar/playervar keywords.

Types can be specified, eg globalvar int A will declare A as an int, and will throw an error on A = 3.4.

The absence of a type is the same as the type Any, which means the variable can hold any value. This is useful when a type is required, such as Vector<Any, int, float>.

Types are:

• Object
  • Player
  • float
    • unsigned float
    • int
      • unsigned int
  • bool
  • DamageModificationID
  • HealingModificationID
  • EntityID
  • TextID
  • String
  • Vector
    • Direction
    • Position
  • Hero
  • Map
  • Team
  • Gamemode
• Array
• void
• enums (HudReeval, etc)

The Array and Vector types can have sub-types.