Testing integration

[xHeaven]

On a hotkey, we should be able to create a test runner in the IDE on-the-fly that runs a test based on the position of the cursor.

• if the cursor is inside a test function, run that specific test only (with all the providers)
• if the cursor is at class-level, run the entire class of tests
• if the cursor is in the directory picker on specific test file(s) or folder(s), run those, respectively

Apart from that:

• We also want to show IDE output based on the teamcity format (in-IDE integration like PHPUnit)

[xHeaven]

@brendt feel free to add anything that comes to mind. I've sketched this up real quick based on what you've said on the 1st of December live on Youtube.

[brendt]

Perfect, I've also added support for in-IDE output, for which I've now already added teamcity output support