[0.2.3] - 2023-02-03

Lots of unit tests and fixed bugs after the interpreter refactor

Added

• Array indexing with negative numbers, starting from the end of the list
• Unit tests for literal and expression evaluation
• Integration test module for testing instructions
  • This can be placed by running /function bot:spec/place

Fixed

• Regex matcher is now correctly passed a string's value
• Backslashes, within a Regex literal, unless escaping /, no longer need to be escaped themselves.
• $INVENTORY and $POS variables now parse correctly again