Port of Prepare-metadata to new module 'metadata/genomesummary'

[ens-LCampbell]

This is the first piece of the puzzle in splitting the current Ensembl/Genomio module Prepare_metadata.nf.

In the current form, we have a non-standard module comprised of essentially A) Subworkflow, B) module process and C) Function to index the metadata returned from module process. As a request, moving this module to nextflow_modules will require this to be split entirely into distinct parts.

This PR contains part B) - Just the module process ('_PREPARE_GENOME_METADATA') and calling of ensembl-genomio python module genome_metadata_prepare which generates one output metadata JSON. Included also software version JSONs as part of nf-core standard practice.

MID PR Update required:
I have made an effort to be as descriptive as possible in terms of the naming of this tool/subtool. Originally I went with metadata/fetch but realised the module is doing some very particular metadata parsing from a genome summary JSON file from NCBI. Hence this name could be a bit misleading. I made update to the meta YML to give further information. Name of the module (i.e. tool/subtool) PLUS the meta YML should suffice in directing users who want to adopt a given module.

Included also:

• main.test.nf
• meta.yml
• environment.yml
• snapshot yml following full run of nf-test test metadata/genomesummary

[JAlvarezJarreta]

Couple of minor details, but looks good otherwise 👍 Cheers!

[DLBPointon]

For the LICENSE, I know you're not following nf-core standards but personally I would follow something like this for licenses just so that you have a total separation of text and code.

https://github.com/nf-core/modules/blob/7cc4017a73ee55eda0b752fbfb8e9184812f101f/modules/nf-core/bcl2fastq/LICENSE#L4

[JAlvarezJarreta]

For the LICENSE, I know you're not following nf-core standards but personally I would follow something like this for licenses just so that you have a total separation of text and code.

https://github.com/nf-core/modules/blob/7cc4017a73ee55eda0b752fbfb8e9184812f101f/modules/nf-core/bcl2fastq/LICENSE#L4

That would be great if we could, unfortunately Apache license requires a LICENSE and NOTICE file in the root of the repo, and then a boilerplate header inside each file [link]. And thankfully now we have the NOTICE with the copyright year, before the year was in every header, terribly painful to update every year.

[DLBPointon]

Shame about the license, everything else looks good to me though!