`TRootResTreeNode`
pt		InternalFind
		Create
		CreateSubNode
		Add
		FindFreeID

`TResourceTreeNode`
pt		GetNamedCount
pt		GetNamedEntry
pt		GetIDCount
pt		GetIDEntry
pt		GetData
pt		InternalFind
pt		Create
		Destroy
		Add
		CreateSubNode
		CreateResource
		Clear
		Remove
		Find
		FindFreeID
		IsLeaf