Add documentation about SANY's packages such as its syntax tree (SyntaxTreeNode) and semantic graph (SemanticNode).
Add documentation about SANY's packages such as its syntax tree
(SyntaxTreeNode) and semantic graph (SemanticNode).

[Documentation][SANY]

lemmy/tlaplus,tlaplus/tlaplus,lemmy/tlaplus,lemmy/tlaplus,tlaplus/tlaplus,tlaplus/tlaplus,lemmy/tlaplus,tlaplus/tlaplus