Added encoding configuration

[josenicomaia]

Added encoding configuration #34

[josenicomaia]

I wasn't able to test the changes. I don't know how to setup the development environment.
The README.md wan't enough.

[josenicomaia]

I applied the "diff" at ~/.vscode/extensions/ikappas.phpcs-0.7.0 and it worked fine.

[weirdan]

@josenicomaia , it may have worked for 0.7, but you're submitting this against develop, so you should really test against that.

develop (future 0.8) is very different to 0.7, so this actually may do more harm there than good.

TextDocument.getText() returns string that's later passed to the stdin of the process started with utf8 IO streams encoding (see options hash in lint method). So I suspect it will be utf8 on PHPCS stdin, no matter the actual file encoding. See AtomLinter/linter-phpcs#235 for very similar problem, and why it makes sense to keep --encoding=UTF-8 as the only encoding.

[ikappas]

@josenicomaia Thank you for submitting a merger request!

As @weirdan accurately explained the way the latest version works on develop is very different compared to 0.7 so I am closing this.