Add default_checks.xml based on sun_checks.xml to be used as the default checkstyle rules for the base-pom
Disable checkstyle rule that checks that each Java package has a Javadoc file used for commenting.
Disable checkstyle rule that checks for Javadoc comments.
Modify checkstyle rule that checks for Size Violations.

- Change LineLength from default to 120
- Change MethodLength to only evaluate methods and not ctors, also set line length to 150 without counting whitespace and single line comments