Activate no-tabs rule in checkstyle

[piotrlg9]

It will make our life easier...

./checkstyle.xml

<module name="Checker">
...
  <module name="FileTabCharacter"/>
...
</module>

[piotrlg9]

@BartekGravity @piotr-bugara-gravity9 what is your opinion on this?

[BartekGravity]

I'm team tabs, I personally hate spaces :)

[piotr-bugara-gravity9]

Spaces