Add correct flags and print handling to all commands about hired HOT 2 CLOSED

To do this properly it would be good to refactor the parser to remove the stages (since it always moves forward in them it might as well use variables in a function).
It might also be good to rewrite the command abstraction to one boxed impl Command and one optional print command (since most every command takes the p flag).
Alternately, just whack it into one lump in the parser without separation, since all command logic is in buffer either way.

from hired.

Some flag handling is still missing, but the essential parts are done. If anything any further development will come from choosing which flags to add to what when deviating a bit from ed's syntax

from hired.