Add diffusion/diag B for aerosol DA and some other needed changes

[CoryMartin-NOAA]

Description

This PR adds in support for computing files needed for the aerosol analysis B. This includes a new task, aeroanlgenb. This work was performed by both me and @andytangborn

Resolves #2501

Please note, I am still using python to create dictionaries for FileHandler. This will not be resolved in this PR but a future PR, an issue #2737 has been created to make note of this.

Type of change

• New feature (adds functionality)

Change characteristics

• Is this a breaking change (a change in existing functionality)? NO
• Does this change require a documentation update? NO

How has this been tested?

• Cycled test on Hera

Checklist

• [x] Any dependent changes have been merged and published
• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] My changes generate no new warnings
• [x] New and existing tests pass with my changes
• [x] I have made corresponding changes to the documentation if necessary

[CoryMartin-NOAA]

This is draft until I update the COM to COMIN/COMOUT

[CoryMartin-NOAA]

All besides Barry, don't look at until it's marked ready to review, I plan to do some refactoring before this is ready.