- [*] Go oo/StructAnonymousFieldMeth2, demo the method calling with embedded structs, implicit and explicit
- [*] Go graph, add another test example: Chinook.schema.dot, apart from the existing gtest.fin, which is world.dot from graphviz.org
- [*] Go graph: Graphviz.go, now dump the result of read2graph from cluster/tsgread.go
- [+] Go graph: Graphviz.go, add sample output, generated from

  go run Graphviz.go Chinook.schema.dot > Chinook.schema.Graphviz.dot
- [*] Go graph: cluster/cluster.go, the sub-graphs have name & diret info now
- [*] Go graph: cluster/tsgraph.go, adapt for Chinook.schema example
- [+] Go graph: Chinook.schema-cluster?.dot, the clustering results of Chinook.schema.dot