Custom `no-renaming-operator` eslint rule

[ImpregnableProgrammer]

Implemented the custom eslint rule no-renaming-operator as specified in issue #19. The error message might need to be tweaked a bit, but the detection works very well at the moment while editing in VSCode with the ESLint extension enabled!

[ImpregnableProgrammer]

We might also need to resolve the many more issues being raised by ESLint now after unignoring the files under the package/*/src directories (leading the workflow check to fail), but I'm unsure how to reconcile all of those myself at the moment. The unit test for the new custom rule is also not running properly at the moment and I'll try to see why that is.

[ImpregnableProgrammer]

Ok, I'm not really sure why the workflow check is failing at the moment...

[ImpregnableProgrammer]

Ah dang, well that still didn't fix the failing workflow, but at least rules testing is implemented correctly now with type information https://typescript-eslint.io/packages/rule-tester#type-aware-testing

[codecov[bot]]

Codecov Report

Merging #24 (9498572) into main (9c4407b) will increase coverage by 0.71%. The diff coverage is 88.23%.

@@            Coverage Diff             @@
##             main      #24      +/-   ##
==========================================
+ Coverage   86.31%   87.02%   +0.71%     
==========================================
  Files          16       17       +1     
  Lines         592      609      +17     
  Branches       70       77       +7     
==========================================
+ Hits          511      530      +19     
+ Misses         80       77       -3     
- Partials        1        2       +1     

Files Changed	Coverage Δ
...plugin-choreography-ts/src/no-renaming-operator.ts	88.23% <88.23%> (ø)

... and 1 file with indirect coverage changes

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