As a PDS Operator, I want to update PLAID to the latest PDS4 Information Model

[jordanpadams]

Per January tag-up, here is the plan to fix these issues:

• PDS4 IM versions 1.14.0.0 and earlier - LDDs are not organized. Grab all dictionaries, use the latest
• PDS4 IM versions 1.15.0.0 and on - group by IM version. Once a user selects an IM version, we have a specific subset of discipline LDDs

@jeffyuhaoliu identified an issue with the JSON including all dependencies. near term solution: have @jshughes create on uber JSON with all LDDs in it. future solution: JSON output for each dLDD will contain all dependent LDDs

[jordanpadams]

📆 december status: on schedule

[jordanpadams]

📆 january status: delayed due to lack of available resources. in danger of descope from build. not impact on build schedule.

[jordanpadams]

closed per #22