Add MessageEffect helpers that encode the conventions for Parse stage error/success effects.
Parser now disambiguates ALL "o", "O", and "0" (in opcodes and args) rather than just in args.
Gobbler defines helpful tokens, strips delimiters off input automatically.
Add/fix tests for OperationParser.
Added SIMTestCase in utils/ to contain helpful new assert methods.
Add/fix Equipment SMS APIs and tests.