The plan for arbitrarily large files

This plan currently only handles the case that each delta is not stored as diffs. The diffs part is a refinement to come later.

Suppose the file is "foo", the sfile is "SCCS/".

If the file gets too large, then SCCS/ becomes SCCS/, which is a directory. In that directory, you will find

SCCS/	- this is the delta table graph.
SCCS/	- serial number # contents