Enhancement/Refactoring tasks for 'resource validation' : PR#1029

[hrishin]

Following are improvements tasks has left from PR #1029 for issue #66

• bundle JSON schema in maven package
• sync and update JSON schema package

Problem:
PR #1029 has implemented JSON schema validation for verifying K8's/OpenShift resource descriptors.
JSON schema is hosted on github. Hence for each build cycle maven plugin issues the network calls (HTTP Request) that could make build process unreliable and increase network usage.

Solution:
-Bring essential JSON schema offline and bundle it in maven package as per discussion
-Cache schema file
-Other approach /solution? most welcome.

[stale]

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