NMS-6688: Documentation SSLCertMonitor

- Created documentation based on source code, no Wiki available
- Include in main document
Update SSLCertMonitor.adoc

Explain the use cases for the SSLCertMonitor and where it won't work.
Merge pull request #2 from roskens/patch-2

Update SSLCertMonitor.adoc
Merge pull request #52 from indigo423/NMS-6688-doc-SSLCertMonitor

NMS-6688: Documentation SSLCertMonitor