Add Maven compilation testing for Input and Output files

[Anmol202005]

ref: #104 (review)

Add Maven compilation testing for Input and Output files to ensure code remains compilable after auto-updates are performed.
See how this is implemented in the main checkstyle project:
https://github.com/checkstyle/checkstyle/blob/1f71110827d1b2b71f4a2434ab20253d344fcbb0/pom.xml#L1462-L1473

[rdiachenko]

Resolved by #110