2021-February-28 - Prerelease - 2.6.38@ff57983dc2

Organize & group sub-projects: http-clients, servers, lib (#8931)

Group several of the subprojects into the following:

lib = {
   dropwizard-common,
   dropwizard-common-test,
   java-extras,
   swing-lib,
   test-common,
   websocket-client,
   websocket-server,
   xml-reader
}

http-clients = {
   feign-common,
   github-client,
   lobby-client,
   maps-server-client
}

servers = {
   database,
   game-relay-server,
   lobby-server,
   maps-server
}