set cloudcover and gsd as floats in repository

[tomkralidis]

Overview

This PR updates the repository to store cloudcover and gsd values as floats, as well as removes some leftover print() statements.

Related Issue / Discussion

None

Additional Information

Test SQLite3 databases updated as follows:

rm tests/functionaltests/suites/stac_api/data/records.db
pycsw-admin.py setup-repository -c tmp.cfg  # config pointing to tests/functionaltests/suites/stac_api/data/records.db
pycsw-admin.py load-records -c tmp.cfg -p tests/functionaltests/suites/stac_api/data

rm tests/functionaltests/suites/cite/data/cite.db
pycsw-admin.py setup-repository -c tmp.cfg  # config pointing to tests/functionaltests/suites/cite/data/cite.db
pycsw-admin.py load-records -c tmp.cfg -p tests/functionaltests/suites/cite/data

rm tests/functionaltests/suites/cite/data/cite-virtual-collections.db
cp tests/functionaltests/suites/cite/data/cite.db tests/functionaltests/suites/cite/data/cite-virtual-collections.db

sqlite3 tests/functionaltests/suites/cite/data/cite-virtual-collections.db

sqlite> UPDATE records SET parentidentifier='urn:uuid:19887a8a-f6b0-4a63-ae56-7fba0e17801f' WHERE rowid=2;
sqlite> UPDATE records SET parentidentifier='urn:uuid:19887a8a-f6b0-4a63-ae56-7fba0e17801f' WHERE rowid=3;

Contributions and Licensing

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

• I'd like to contribute [feature X|bugfix Y|docs|something else] to 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