Create separate mojos/goals for separate formatters

[ctubbsii]

This is something I've been thinking about for awhile, and convinced it will be beneficial for users, to simplify configuration and satisfy a variety of user needs.

I think the existing mojo which formats everything is fine, but I think we can also create mojos which are more limited in scope, such as a format-java, format-javascript, format-xml, etc. goals. This will allow language-specific includes/excludes and more control over when in the build lifecycle specific file types are formatted.

The current mojo could be deprecated in favor of a format-all goal, but the current name is probably also fine.

[hazendaz]

+1

[WalterMourao]

+1