err on validating filesize with non-expected suffixes
WIP: start to flesh out readdir and access callbacks

initial response to readdir and access callbacks.. enough to allow tab completion and listings
flesh out getxattr callback
fix spelling error in readdir param name
WIP: initial handling of file ranges

separates starting and ending files with .. as separator
separation function has the ability to return starting or ending files or both
starting if both params point to same string,
ending if second param is null, both if second param is provided and different.
flesh out statfs callback
comments only: removed unneeded TODO flags
add dummy calls to isSpecialFile
add #defines around xattr callbacks
change utime callback to utimens
add create callback (quick ro response)
add direct_io and nonseekable flags when opening
fix segv in separateEndingFile
added keepcache option to enable per open