This is a helper function to convert a plugin array with Node to a plugin array with ConditionNodeStruct
This will make sure that if user passes in a Node-type condition node, it will be converted to a ConditionNodeStruct,
which is the type that the smart contract of DARC entrance interface accepts
This is a helper function to convert a plugin array with Node to a plugin array with ConditionNodeStruct This will make sure that if user passes in a Node-type condition node, it will be converted to a ConditionNodeStruct, which is the type that the smart contract of DARC entrance interface accepts