Make module context-aware

[rzhao271]

Fixes microsoft/vscode#120570

• Added tests
• Set Appveyor to only use Node 12 and 14
• Updated some dependencies (we're still using tslint, though)

[deepak1556]

Please add tests that uses the module simultaneously from main thread as well as nodejs worker threads

[Tyriar]

Let's remove 10 and 11, they're pretty old at this point.

[bpasero]

👏 for the test

[deepak1556]

@Tyriar appveyor is not running on this repo due to permission issues https://ci.appveyor.com/project/Tyriar/vscode-windows-process-tree/builds/38563417, can you reauthorize. Thanks!

[Tyriar]

Fixed it

[rzhao271]

I'll go change the tests because the current worker tests don't call into native code.

[deepak1556]

Additionally can you add a test that checks the memory usage of the process, use getProcessList after multiple workers have exited to ensure there is no memory leak.

[Tyriar]

Let's just keep node 12 and 14 in appveyor.yml

[rzhao271]

I didn't add the memory leak test because the delta between the initial memory and final memory amounts, even after enabling GC (by passing --enable-gc to mocha in package.json and by using global.gc() in the memory leak test), kept varying too much.

[rzhao271]

Ready for review again

[Tyriar]

Thanks, very thorough 🙂