Updated TODO list
Merge branch 'file_loc' of https://github.com/cs3600/project2 into file_loc
Updated file_loc; changed get_file, get_inode_*
Change camelCase style to under_score style
Updated function documentation, signatures
Adjusted some indentation from 4 space to 2
Fixed inconsistent indentation; Removed old TODOs
Removed extra whitespace
Added TODOs
Added create_inode_direct_dirent for readability

Updated return codes to include error.