Add support to update OrgDbOrgSettings in pac env update-settings or via new command

[chrispiasecki]

It would be nice to have the ability to easily update individual OrgDbOrgSettings. This is currently challenging because that column in the Organization table is one giant legacy XML that consolidates several properties (I am not sure why new properties are still being added here rather than as new organization table columns?) and is risky to try and manipulate (which is why we rely on tools like the Org Settings Updater to manually update these settings).

One proposed way is to extend the existing pac env update-settings command to support each individual orgdbsetting name (either with the existing --name and --value arguments, or new explicit arguments to identify orgdbsetting name/value, or update multiple settings via JSON (similar request here: #407)

pac env update-settings --name RecomputeOwnershipAcrossBusinessUnits  --value true
pac env update-settings --orgdbsettingname RecomputeOwnershipAcrossBusinessUnits  --orgdbsettingvalue true
pac env update-settings --input-file  ./settings.json
pac env update-settings --orgdbsettings-file  ./settings.json

Another proposed way is to add a new command for it:

pac env update-orgdbsettings  --name RecomputeOwnershipAcrossBusinessUnits  --value true
pac env update-orgdbsettings --input-file  ./settings.json