Viewing profiles in the Dogemap pup

[raffecat]

We need a way to view Identity profiles on the Dogemap.

This touches a number of components:

• ✅ dogenet: include identity pubkey in dogenet-node metadata when getting nodes for the map
• ✅ identity: an API to get profiles, given identity pubkeys
• ✅ identity: filter out invalid profiles (that don't contain the node pubkey)
• dogemap-ui: filter set of nodes in hex, get profile chits
• dogemap-ui: web component to display profile chits
• dogemap-ui: sidebar to display profile chits
• dogeboxd: optional dependencies: dogemap -> core, dogemap -> identity

After discussions about problems with dogenet not knowing the identity profiles, and therefore latitudes and longitudes, when it returns the node list to dogemap, we'll create a new dogemap backend:

• ✅ takes over geo-ip lookups (from dogenet)
• ✅ takes over core-node indexing (from dogenet) (optional dependency on core)
• ✅ generates the node list for DogeMap:
  • ✅ fetches all dogenet nodes from dogenet
  • ✅ queries identity service for all known profiles for these nodes
  • ✅ performs geo-ip lookups for all nodes without a profile
  • ✅ looks up all core nodes in its database
  • ✅ returns the merged set of all nodes
• ✅ get profile chits api:
  • queries identity service for all known profiles, for requested nodes
  • returns placeholder profiles for all remaining nodes

OK that's the basic shape of it.