Split the curses stuff out into a separate file so that we can import curses...

Split the curses stuff out into a separate file so that we can import curses and lldbcurses at the module level.

Added key press handling and a first responder system and the ability for windows that can be first responders to be selected and have key presses routed to the first resonder, delegates and also travel up the parent chain.

Remove the temp file that was being created.

llvm-svn: 248232