Feature/handle_metadata

[worksofliam]

Enables makefile generation to take metadata into consideration:

• Reading each Rules.mk in directories and then applying them to the generated makefile
  • If dependencies are coded, then the Rules.mk will override Source Orbit.
  • If attributes are coded, then we will apply them to the build command for the object
• Reading each ibmi.json and applying those rules to sources/objects in the same directory, taking tgtCcsid into account when applying TGTCCSID for regular programs, COMPILEOPT for SQL programs and CCSID on CRTSRCPF for items compiled from temporary members.
  • This PR does not add support for objlib.
• Test cases for Rules.mk and .ibmi.json

[worksofliam]

@edmundreinhardt @irfanshar This PR is now ready. I fixed incorrect spellings and made sure the tests are passing. Thanks!