Clean data script (#42)
Clean data script (#42)

* add basic scripts for removing data

* implement advance script for clearing data

* rename cleanup to clear_node

keenondrums/sovrin-node,spivachuk/sovrin-node,spivachuk/sovrin-node,keenondrums/sovrin-node,TechWritingWhiz/indy-node,TechWritingWhiz/indy-node,keenondrums/sovrin-node,TechWritingWhiz/indy-node,spivachuk/sovrin-node,TechWritingWhiz/indy-node,spivachuk/sovrin-node