Add plenty of new features (in issue #2):

• Dump of the tree value graph.
• Suport pickle.dumps of TreeValue objects
• Binary-based full data dump
• Binary-based full data load
• Native-python-based full data load
• Self calculation with original address
• Self operator with original address
• Add more features in general_treevalue, such as NotImplement
• CLI support (dump/load, graph generation, graphviz code dump, etc)

Documentation for new version (in issue #4): https://opendilab.github.io/treevalue/v0.1.0/