Support for static variables added (experimental)
VariuableTypes.h added.
Block:
 - declareVar ---> declareLocalVar
 - hasLocalVars ---> hasDeclareVars
 - declareStaticVar added.
 - ...
Compiler:
 - CompilerContext ---> FunCompileContext
 - 'static' support added.
 - ...
CompilerContext ---> FunCompileContext
Parser & Tokenizer:
 - 'static' support added.
Consts:
 - 'static' and SYS_CALL_GET/SET_STATIC_VAR added.
UserFunction:
 - StaticData added.
FunctionCallContext:
 - get/setStaticVar(...) added.
RuntimeInternals:
 - SYS_CALL_GET/SET_STATIC_VAR implemented.