Support for ISO 19115 Part 3 XML

[vjf]

Overview - Support for ISO 19115 Part 3 XML

This PR contains a new profile for pycsw, called 'iso19115p3'.

• The profile is in 'pycsw\pycsw\plugins\profiles\iso19115p3', this includes a new outputschema
• There is a new file 'mdb/py' in 'pycsw/pycsw/core' that contains classes used to parse the XML.
• There is a unit test for 'mdb.py' in 'pycsw\tests\unittests\test_mdb.py'
• There are function tests in 'pycsw\tests\functionaltests\suites\mdb'

Related Issue / Discussion

Additional Information

Contributions and Licensing

(as per https://github.com/geopython/pycsw/blob/master/CONTRIBUTING.rst#contributions-and-licensing)

• I'd like to contribute ISO 19115 Part 3 support for pycsw. I confirm that my contributions to pycsw will be compatible with the pycsw license guidelines at the time of contribution.
• I have already previously agreed to the pycsw Contributions and Licensing Guidelines

[kalxas]

CI is still failing I see

[vjf]

@kalxas @tomkralidis All fixed. Thanks.

[kalxas]

@vjf thank you.
We will review and come back with comments

[giohappy]

We're planning to upgrade PyCSW for GeoNode and one of the compelling reasons is the support for ISO 19115 Part 3.
Did you plan to merge this before the release of PyCSW 3?

@kalxas I take the opportunity to ask if you have a timeline for the release of PyCSW 3.

[tomkralidis]

@kalxas let's review during this week's OGC Sprint.

[tomkralidis]

Thank you for your patience @vjf -- an excellent piece of work here! See change requests.

Additional comment: the directory tests/functionaltests/suites/mdb is better renamed to tests/functionaltests/suites/iso19115p3.

[vjf]

@tomkralidis @kalxas All fixed.

[tomkralidis]

@vjf sorry for the delay; it seems I added some final comments to this PR but they were not submitted.

We are fine with adding the extra columns for vertical extent (min and max), but prefer that that the funder column be managed outside of pycsw as an extra column. Once this is updated, I'll merge this PR -- great work again!

[vjf]

@tomkralidis @kalxas Removed 'Funder' as requested. Thanks.

[tomkralidis]

Thanks @vjf, merged.