Add CLI command "metanorma release" for packaging and releasing a document

[ronaldtse]

In ISO, there are defined "submission points" for a document to be sent to ISO/CS editors.

These are the steps that a "submission package" is necessary:

• PWI
• AWI
• CD
• DIS
• FDIS
• Publication

At any of these stages, a user can type "metanorma package" and then Metanorma will generate a submission package.

The submission package should contain:

• Word output
• PDF output
• ISO-style NISO STS output
• all figures named in a zip file that follows DRG directives

File names of the figures:

I also want to generate the "name" of the package, which can be named like this:
(ISO 34000: https://github.com/CalConnect/iso-34000)

Where:

• "50.00" is the harmonized stage code (HSC)
• "20220721" is the date when the package was generated

This command can also be used by a new GitHub Action that automatically builds the package on a Git tag in a metanorma document repository. Then the user can do:

1. Push git tag of v50.00.20220721
2. The workflow will build the document and upload the contents (the submission package) to that release.

[ronaldtse]

This feature was also requested by the IHO S-102 project team.

[ronaldtse]

Only ISO and IEC utilize Harmonized Stage Codes. Other organizations like OGC have their own stage codes. So the packaging mechanism / file name patterns will have to be different per flavor.

[opoudjis]

all figures named in a zip file that follows DRG directives

Note that metanorma-iso already validates for this.

[ronaldtse]

Note that metanorma-iso already validates for this.

Simply validating the file names is not useful by itself -- what is useful is to compile the set of images together for submission to ISO/CS in one archive. The DRG directives specify the folder name as well as file names. The current validation scheme does not actually follow those rules.