Fix #4675 Remove ogc-schemas, w3c-schemas and jsonix dependencies

[allyoucanmap]

Description

This PR introduces following changes:

• refactor of the CSW api by removing the utils/ogc/CSW and utils/ogc/Filter in favor of xml2js parser
• remove the deprecated describeFeatureTypeOGCSchemas method containing the utils/ogc/WFS
• remove of the test SLDUtils-test.js
• remove of ogc-schemas, w3c-schemas and jsonix dependencies included in utils/ogc/CSW, utils/ogc/Filter, utils/ogc/WFS and SLDUtils-test.js

Note SLDUtils.js has been completely removed in the PR #10442 because it is not used by MapStore. We are removing SLDUtils-test.js from this PR to run all the tests.

Please check if the PR fulfills these requirements

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

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

• Refactoring (no functional changes, no api changes)

Issue

What is the current behavior?

#6489 (related to #4675)

What is the new behavior?

Removed ogc-schemas, w3c-schemas and jsonix dependencies

Breaking change

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

• No

Other useful information