Add project codestyles

[ghost]

This will fix #122 As discussed in #122 this pull request adds project specific code styles based on the grandcentrix android code styles (https://github.com/grandcentrix/androidcodestyle) to the project.

[passsy]

Not sure if we should convert all sources within this PR or not 🤔

[ghost]

@passsy Good point. Was thinking about that as well. 🤔 But I wanted to wait for your and @StefMa opinions before actually applying those styles.

[StefMa]

Hmm.. Since we don't have that much PR I would suggest to do it. 👍

On Oct 2, 2017 12:37 PM, "rberghegger" notifications@github.com wrote:

@passsy https://github.com/passsy Good point. Was thinking about that as well. 🤔 But I wanted to wait for your and @StefMa https://github.com/stefma opinions before actually applying those styles.

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[passsy]

true, just do it. If there are conflicts we can solve them by applying the code style as well

[ghost]

Done. I've applied the new project codestyle to every module individually. Additionally I've added CONTRIBUTING.md which contains a few informations regarding the codestyle.

[StefMa]

I would suggest to remove the TK from the contribution file. Also start with a single # and use two for code style... 👍 rest lgtm