[BACKLOG-503] Extensions oemdoc update

Conflicts
Merge pull request #1961 from scottyaslan/devBranch5.2

[BACKLOG-503] Extensions oemdoc update
Merge pull request #1966 from mdamour1976/5.2

[BACKLOG-761] AuthorizationActionResource JMeter tests
[BACKLOG-763] SystemUserResource
Merge pull request #1969 from e-cuellar/5.2

[BACKLOG-763] SystemUserResource
[BACKLOG-732] - FileResource jmeter/doc cleanup
Merge pull request #1971 from jeffreythomas/5.2

[BACKLOG-732] - FileResource jmeter/doc cleanup