Add some mechanism to add and remove access permission to VerseNode. Some variant of property could be used, e.g.: ``` python # To add access perm node.perm[user_id] = vrs.PERM_NODE_READ | vrs.PERM_NODE_WRITE # To remove access perm del node.perm[user_id] ```
Add some mechanism to add and remove access permission to VerseNode. Some variant of property could be used, e.g.: