Ensure resource is passed into getTerminalService method

[DonJayamanne]

Fixes #1476

This pull request:

• Has a title summarizes what is changing
• Includes a news entry file (remember to thank yourself!)
• Has unit tests & code coverage is not adversely affected (within reason)
• Works on all actively maintained versions of Python (e.g. Python 2.7 & the latest Python 3 release)
• Works on Windows 10, macOS, and Linux (e.g. considered file system case-sensitivity)

[codecov]

Codecov Report

Merging #1691 into master will decrease coverage by <.01%.
The diff coverage is 87.5%.

@@            Coverage Diff             @@
##           master    #1691      +/-   ##
==========================================
- Coverage   71.49%   71.49%   -0.01%     
==========================================
  Files         277      277              
  Lines       13014    13017       +3     
  Branches     2344     2344              
==========================================
+ Hits         9305     9306       +1     
- Misses       3574     3575       +1     
- Partials      135      136       +1

Impacted Files	Coverage Δ
src/client/common/installer/productInstaller.ts	59.18% <0%> (ø)	⬆️
src/client/common/installer/moduleInstaller.ts	48.14% <100%> (ø)	⬆️
src/client/linters/prospector.ts	82.6% <100%> (+2.6%)	⬆️
src/client/common/installer/pipEnvInstaller.ts	72.22% <100%> (ø)	⬆️
...rc/client/debugger/PythonProcessCallbackHandler.ts	52.96% <0%> (-1.32%)	⬇️
src/client/debugger/Main.ts	52.34% <0%> (+0.49%)	⬆️

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