Found a V40.00 release of TECO.TES.  This is the original command decoder
included in the VMS version of TECO-32.  We will either make changes based
on operating system type, or create a UNIX-specific version that handles
filenames, etc. correctly.
Add TECO modules for inclusion in marco library.
Updated dates in header and begin support of :EG command.
BSD UNIX makefile.