Add advanced mock matchers

[jonnydgreen]

Description

Adds:

• Advanced mock matchers with tests and documentation
• Improved test coverage

Checklist

• [x] My changes follow the contributing guidelines of this project.
• [x] I have performed a self-review of my code.
• [x] I have made corresponding changes to the documentation.
• [x] I have added tests that prove my fix is effective or that my changes work.
• [x] New and existing unit tests pass locally with my changes.

[codecov[bot]]

Codecov Report

Merging #3 (d8211b7) into main (b4e06e2) will increase coverage by 24.74%. The diff coverage is 100.00%.

:exclamation: Current head d8211b7 differs from pull request most recent head c0c4304. Consider uploading reports for the commit c0c4304 to get more accurate results

@@             Coverage Diff             @@
##             main       #3       +/-   ##
===========================================
+ Coverage   74.46%   99.21%   +24.74%     
===========================================
  Files           6        6               
  Lines         329      381       +52     
  Branches       23       44       +21     
===========================================
+ Hits          245      378      +133     
+ Misses         84        3       -81     

Impacted Files	Coverage Δ
mock-fetch.ts	97.88% <100.00%> (+31.91%)	:arrow_up:
mock-interceptor.ts	100.00% <100.00%> (ø)
mock-scope.ts	100.00% <100.00%> (+28.94%)	:arrow_up:
mock-utils.ts	100.00% <100.00%> (+18.00%)	:arrow_up:
mock-fetch.error.ts	100.00% <0.00%> (+50.00%)	:arrow_up:

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