Create and pass environment object to the jedi.Script API

[DonJayamanne]

Fixes #1532

No news entry as this issue resolves a bug in the latest version of Jedi included in this current release of VSC.

This pull request:

• Has a title summarizes what is changing
• [n/a] 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 #1544 into master will increase coverage by 0.08%.
The diff coverage is n/a.

@@ Coverage Diff @@ ## master #1544 +/- ## ========================================= + Coverage 71.31% 71.4% +0.08%  ========================================= Files 273 273 Lines 12682 12682 Branches 2275 2275 ========================================= + Hits 9044 9055 +11  + Misses 3497 3492 -5  + Partials 141 135 -6

Impacted Files	Coverage Δ
src/client/debugger/mainV2.ts	75% <0%> (-0.81%)	⬇️
src/client/debugger/PythonProcess.ts	51.25% <0%> (+5.41%)	⬆️

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