#10: Context and local config added for the plugin

[dsuren1]

Description

This PR adds configuration option to the plugin and updated context plugin config. And cleanup of unnecessary files

Please check if the PR fulfills these requirements

• [x] The commit message follows our guidelines: https://github.com/geosolutions-it/MapStore2/blob/master/CONTRIBUTING.md
• [x] Tests for the changes have been added (for bug fixes / features)
• [x] Docs have been added / updated (for bug fixes / features)

What kind of change does this PR introduce? (check one with "x", remove the others)

• [x] Bugfix
• [x] Enhancement

Issue

What is the current behavior?

10 & #11

What is the new behavior?

• The getFIC response is parsed correctly
• Configuration options added to plugin
• Documentation updated
• Cleaned up unnecessary files

Breaking change

Does this PR introduce a breaking change? (check one with "x", remove the other)

• [ ] Yes, and I documented them in migration notes
• [x] No

Other useful information

[dsuren1]

Just one question:

• [ ] I didn't find anything in the code for this point of issue 10:

• [ ] NRU information panel, some fields are not populated even if related values are available in the output of the backed if the user has proper permissions: ...

Did you solved it in this PR or it is still pending?

Yes, this is resolved. In the getFIC call, the onglet param was misinterpreted. I have fixed this in this PR

[offtherailz]

Ok, I didn't see that point, thank you. I'm going to merge. Please @tdipisa tell us when we are free to install on test site updated extensions.