ProvMns interface generation using remote url

ProvMns interface generation using remote url

- Referring to remote ProvMns spec file from the 3gpp sources
- Generating the interface without keeping a local copy of the spec file
- Excluding the files that are not needed in our ProvMnS implementation
  as those were causing issues while code generation
- Have one Resource interface in org.onap.cps.ncmp.rest.provmns.model
  package that is needed to compile the generated code
- Added exclusion in jacoco plugin for code coverage

Issue-ID: CPS-2817
Change-Id: Ie9801fac52850dbd50f975a9b65d36f818b2b474
Signed-off-by: mpriyank <priyank.maheshwari@est.tech>