Investigate Removal of Hierarchy

[dborncamp]

Currently, the SDK tries to keep an internal record of all directories and OIDs, while this is not guaranteed to have the most recent information, if it is found then it does not need to be found again since the OID does not change. But populating the hierarchy is a very expensive operation as it needs to look into every directory to find all files and OIDs.

Data 1.5 does not need a full OID to manipulate files, it can be done by specifying a directory after a path (like from root). Keeping in mind that names are not unique in a dir so it is possible that it could upload to an incorrect location. If a U (update) is uploaded and a name is specified, but no OID it will try to find the existing OID. If it can't find one, it will convert it to a C automatically and try to create a new file.

Investigate to see if it is possible to remove the hierarchy completely by using the root OID and the path with a U.