Make 'settings lookup' managed via DB and Django Admin

[rhodges]

Currently mapping Species ID to name/link (for things like reports on 'modeled species' or 'observed species') requires editing the file ./mp/settings_lookup.py, then restarting the app server.

Instead of querying this lookup, the logic should first query a DB lookup table for this information, only referencing this file if no matching records are found (or not at all).

The table should likely look something like this:

• lookupType: ['ecoregion', 'species', 'coa']
• lookupID: <a number - this should NOT be the record ID - leave those detached. Also this should only be unique for their lookupType>
• name:
• hasLink: <bool, default=False>
• link: <str - optional, either a full URL with protocol, or name, deriving the rest of the URL from lookupType:
  • 'ecoregion': 'https://oregonconservationstrategy.org/ecoregion/____________/',
  • 'species': 'https://oregonconservationstrategy.org/strategy-species/______________/'
  • 'coa': 'https://oregonconservationstrategy.org/conservation-opportunity-area/___________/'