Enhancements to crate testing

[booyaa]

Version of VSCode: 1.10.1
Version of the extension: 0.3.10
OS: macOS 10.12.2 (Sierra)

Description:

Testing should have better integration with vscode rust extension.

1. Enable Test runner in status bar (see screenshot)

2. Add the ability to run or debug tests as a codelens (see screenshot)

[KalitaAlexey]

@booyaa,
The first isn't worth it since there are: a shortcut (CTRL+T), a command (Cargo: Test).
The second one is interesting, but it requires time.

[booyaa]

I've given more examples of why the first is useful. Asides performing the same function you refer to (Cargo: Test) it also gives status of tests.

[KalitaAlexey]

Wow. Icons. Cool.
What is the extension?

[booyaa]

Both features can be found in this Python language extension: https://marketplace.visualstudio.com/items?itemName=donjayamanne.python

[booyaa]

Related issue in RLS rust-lang/rls#173