Automatic Code Generator Docymentation(0-diff)

[JulesKouatchou]

Description

Documentation for the Automatic Code Generation

We included in the MAPL User's Guide a section on Automatic Code Generation.
It describes the steps users need to follow to take advantage of the tool MAPL_GridCompSpecs_ACG.py to automatically generate code segments for the registration and access of member variables of ESMF states of any gridded component.

Related Issue

Motivation and Context

The created document will allow users to simplify the code and avoid missing registration or declarations of fields.

How Has This Been Tested?

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Trivial change (affects only documentation or cleanup)

Checklist:

• I have tested this change with a run of GEOSgcm (if non-trivial)
• I have added one of the required labels (0 diff, 0 diff trivial, 0 diff structural, non 0-diff)
• I have updated the CHANGELOG.md accordingly following the style of Keep a Changelog

[tclune]

@JulesKouatchou I think this should be a merge to develop. That or you started from some non-main branch. Too many deltas in source code.

[mathomp4]

Indeed, I think this should have been onto develop. I'll try changing the base, though that might go...weird.

ETA: Nope. Changing the base was good. Looks much cleaner now