Convert CountertopStation to TypeScript

[slifty]

This PR converts CountertopStation to TypeScript

Related to #153

[codecov[bot]]

Codecov Report

Merging #191 (1b8a77e) into main (25d4672) will decrease coverage by 1.62%. The diff coverage is 80.00%.

:exclamation: Current head 1b8a77e differs from pull request most recent head 2b50144. Consider uploading reports for the commit 2b50144 to get more accurate results

@@            Coverage Diff             @@
##             main     #191      +/-   ##
==========================================
- Coverage   88.43%   86.81%   -1.62%     
==========================================
  Files          19       19              
  Lines         441      440       -1     
  Branches       88       82       -6     
==========================================
- Hits          390      382       -8     
- Misses         51       58       +7     

Flag	Coverage Δ
javascript	98.25% <ø> (+0.99%)	:arrow_up:
typescript	79.47% <80.00%> (-0.26%)	:arrow_down:

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Files Changed	Coverage Δ
src/classes/Countertop.js	93.33% <ø> (ø)
src/classes/CountertopStation.ts	78.26% <78.26%> (ø)
src/classes/CountertopStream.ts	100.00% <100.00%> (ø)

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[slifty]

I think this is another case where test coverage is going to be too hard to do since we rely on Kafka and aren't mocking kafka effectively. Once Kafka is taken out of the project it will be easier to test the rest of CountertopStation.