Issue Description:

Cannot find RuleUnit drl in spring boot executable jar.

Spring Boot classloader adds "!" after "BOOT-INF/classes" when resource url is acquired by getResources().

BOOT-INF/classes!/com/some/corp/rules

Need to remove "!" to be consistent with actual path inside Jar file.

Acceptance Criteria:

Able to find RuleUnit drl under "BOOT-INF/classes/" in a spring boot executable jar "BOOT-INF/classes".