Update: rename f_file_move to f_file_rename, add fll_file_move, and address printf().

Update: rename f_file_move to f_file_rename, add fll_file_move, and address printf().

The move function should operate as a move would expect, which includes cross-filesystem.
Rename the f_file_move() to f_file_rename() and ensure the limitations are documented.

The fll_file_move()  calls f_file_rename() and if that fails due to being across filesystems, then call the appropriate clone and remove functions depending on whether or not the source is a file or directory.

I try to avoid having any output strings in the project that is below level 3 (but level 2 may have exceptions).
Rewrite parts of the directory copy and clone functions to use passed functions instead of directly printing.

Cleanup some function's documentation.