Auto-verify that the code is formatted

[Stephan202]

Execute fmt:check as part of the build-checks Maven profile. This way we automatically check whether pull requests are properly formatted.

[coveralls]

Pull Request Test Coverage Report for Build 291

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 86.806%

---

Totals
Change from base Build 287:	0.0%
Covered Lines:	125
Relevant Lines:	144

---

💛 - Coveralls