Adjusment to settings schemas

[sambles]

Requested change:

• Mark older properties, ones replaced by computation_settings as depreciated (things like pla, and do_disaggregation)
• The properties which are shared between model_settings and computation_settings to be factored out and merged together using allOF ~ Amir to create an example which oasis will used to create a PR

Future work

• Clean up the schema from duplicated definitions, these are the same objects being defined in both model_settings and analysis_settings. Instead use a definitions schema which then is used by both. This should help avoid mismatches between these two schemas.

[sambles]

Note: Platform schema description fields might be broken again in v2.4.0

Suggested change: oasis_api-2.4.0-patched2.json

[sambles]

done