Add support to notify VSC Debugger when status of a breakpoint changes

[DonJayamanne]

Fixes #87

[codecov]

Codecov Report

Merging #989 into master will decrease coverage by 0.31%.
The diff coverage is 0%.

@@            Coverage Diff             @@
##           master     #989      +/-   ##
==========================================
- Coverage   64.24%   63.92%   -0.32%     
==========================================
  Files         260      260              
  Lines       12031    12040       +9     
  Branches     2130     2131       +1     
==========================================
- Hits         7729     7697      -32     
- Misses       4293     4334      +41     
  Partials        9        9

Impacted Files	Coverage Δ
src/client/debugger/Main.ts	0% <0%> (ø)	⬆️
src/client/debugger/PythonProcess.ts	0% <0%> (ø)	⬆️
src/client/linters/errorHandlers/notInstalled.ts	33.33% <0%> (-61.12%)	⬇️
src/client/linters/errorHandlers/errorHandler.ts	77.77% <0%> (-22.23%)	⬇️
src/client/common/logger.ts	33.33% <0%> (-20%)	⬇️
src/client/common/application/applicationShell.ts	23.07% <0%> (-7.7%)	⬇️
src/client/linters/baseLinter.ts	85.41% <0%> (-6.25%)	⬇️
src/client/common/installer/productInstaller.ts	61.7% <0%> (-4.26%)	⬇️

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