Broken imports in rvopcodesdecoder

[Karthik B K]

"rvopcodesdecoder" has a few issues:

• it imports constants without using it's relative path. this results in import errors when isac is imported as a python package.
• it does not log an error message prior to raising a SystemExit.
• it does not support passing the path to opcodes_dir.

[Karthik B K]

The above list of issues are by design and must not be changed. Closing this issue.