Code style formatters are not up-to-date

Code style formatters in git repo are not actual. Or not widely used. This causes that different styles are used in code.

There should be some agreement about how the code should be written and this should be forced in PRs. This can remove many problems with whitespaces in PR diffs.

Attached code style templates can be used as a base for new templates that (hope) will be used in Drools projects.