Add links-outs to FlyBrain NDB.
These can be rolled from xrefs attached to terms:
e.g.
[Term]
id: FBbt:00003650
name: ring neuron R1
...
xref: FlyBrain_NDB:10260
->
http://flybrain-ndb.iam.u-tokyo.ac.jp/fmi/xsl/browserecord.xsl?-lay=NDB&Accession+number=10260&-find=-find
