Implemented SnapScript 1.1

-Added constant fields
-Added new script-lib methods (including array creation/access)
-Added ScriptInfo
-Added new bytecode for storing constants
-Modified compiler and runtime for constants
-Fixed string reference bugs
-Fixed nested function argument parsing (no longer breaks with inner
function having >1 argument)
-Fixed bug with bool type leaking

commit-build_id=b0000-156