Initial version
fix Swift problem with SOCoding protocol
add new super class
added further files
completed setupFileStores
added setCacheDelegate
added several further methods and add temporary feature
Initial Version of the Swift FileStore implementation
Initial version of DataStore
change type of fileOffset
initial version
renamed SOCoding to Coding
updated protocol Coding
change type of fileOffset, Int is more universal and preferred by Apple
- use now Int for dataSize and headerSize because it is more universal and preferred  by Apple
- replace now UInt64 by Identifier this lead to more semantic in the code and one place to change the type
updated
- change protocol type from SOCoding to Coding
- use now the Identifier type
minor change
fix problem with functions changes a value
add init method
initial version