feat: Add support for Python 3.10

[mctavish]

This PR adds support for Python 3.10 to the debug agent. A summary of the key changes are:

• Add handling for new opcodes
• Add support for PEP-626 - modified API for line numbers:
  • Abstract handling of line numbers so that both old and new APIs can be supported
  • Use co_lines() in Python code for enumerating line numbers in a code object
  • Copy in and use the _PyLineTable functions for handling co_linetable in C++ code
  • Modify InsertAndUpdateLineData to update the code object's linetable data using the 3.10 format. Note that this will need to be modified again for Python 3.11 which uses a condensed version of the linetable.
  • Update tests to handle the linetable changes
• Update tests to handle modified JUMP offsets
• Update tests to handle modified error messages

[jasonborg]

Looks good! Glad to see this was able to get done, congrats.