Include metadata validation and template scripts in package

[dougiesquire]

This PR moves the metadata.yaml validation and template generation scripts from the /bin directory into access-nri-intake and exposes them as console-scripts

Closes #157

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 96.76%. Comparing base (a34274a) to head (2b7f727).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #158 +/- ## ========================================== + Coverage 96.64% 96.76% +0.12% ========================================== Files 9 9 Lines 596 619 +23 ========================================== + Hits 576 599 +23 Misses 20 20 ```

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[dougiesquire]

Need to add something to the docs about this

[aidanheerdegen]

Need to add something to the docs about this

I can review when docs are done, or now and re-review when docs are ready.

[dougiesquire]

Ready for your incisive eye @aidanheerdegen

[access-hive-bot]

This pull request has been mentioned on ACCESS Hive Community Forum. There might be relevant details there:

https://forum.access-hive.org.au/t/access-nri-intake-catalog-a-way-to-find-load-and-share-data-on-gadi/1659/4