Migrate ProjectShared setting (LT-15154)

Change-Id: Ie05a801808f8aa2e4229d1e1806f5a1748a5bc26
Move the ProjectShared migration into the Db4oServerInfo class

* The Db4oServerInfo runs as a system while FLEx is run as the user.
  Settings migrated to HKCU will now end up where the
  FwDatabaseConnectionService was looking.

Change-Id: Idac5de901f14823cff18a451aa3144b2084d7266