Grouping and Access Protection

FastCode now supports grouping, among many other new features.
*Added grouping, an easy way to organize/protect structures, procedures, and variables. Read more about it here.
*Constants are only swapped during the value tokenization process
*Several memory leaks were fixed

Notes:

• In order to use the standard library, extract the contents of stl.zip and place in in the same working directory as FastCode.
• You can use the -gc flag to tell fastcode to increase garbage collection cycles.