[TDF] Refactor ColumnName2ColumnTypeName
[TDF] Refactor ColumnName2ColumnTypeName

The logic to get the typename of a TTree leaf/branch is now factored
out into its own function, has been streamlined, and support for
leafnames with multiple dots ("b1.b2.leaf") has been added.

olifre/root,root-mirror/root,olifre/root,olifre/root,karies/root,karies/root,karies/root,root-mirror/root,root-mirror/root,olifre/root,root-mirror/root,karies/root,olifre/root,karies/root,karies/root,olifre/root,root-mirror/root,karies/root,olifre/root,root-mirror/root,root-mirror/root,root-mirror/root,olifre/root,root-mirror/root,karies/root,karies/root,root-mirror/root,karies/root,root-mirror/root,olifre/root,olifre/root,olifre/root,karies/root