Test Quick fix support for tslint warnings

[egamma]

• test on any platform, as single platform is sufficient - *@dbaeumer

There is now support for quick fixing some tslint warnings.
The following warnings are supported:

• missing semicolon (known issue that light bulb only shows up at the end of the marker)
• ' should be "
• " should be '
• missing white space
• no trailing white space
• file should end with a newline

To test:

• side install the latest version of https://github.com/Microsoft/vscode-tslint.git
• enable the rules that can be auto fixed in a tslint.json

{
    "rules": {
        "quotemark": [
            true,
            "double"
        ],
        "no-unreachable": true,
        "semicolon": [
            true,
            "always"
        ]
    }
}