PR/50919: David Binderman: Re-do all the debug stuff in a more sustainable way.

use __RCSID()

withough -> without

* Remove code that created the subwin if it did not exist as this is
not the correct behaviour.
* Mods to support new curses window behaviour.

Changed ordering of the cursor positioning call so the posted flag is
set before form_pos_cursor is called.

Position cursor when posting the form.

* Stop next/prev field commands wrapping
* Made debug file open a function call that can be called multiple
times.
* Fixed the enum type.

Multiple fixes:

* A debug version of libform will be build if DEBUG_FORMS is defined
* Can no longer edit fields that do not have O_EDIT set
* Changed background attribute to A_NORMAL like ncurses
*

Multiple fixes:

* A debug version of libform will be build if DEBUG_FORMS is defined
* Can no longer edit fields that do not have O_EDIT set
* Changed background attribute to A_NORMAL like ncurses
* Fixed truncation of field contents when content length == field length
* Current field is set to first visible & active field on form post

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* Changed type of userptr to be void * (now matches ncurses)
* Bumped lib major version due to above.
* Changed debug output to go to a file instead of stderr, the file gets
opened when the form is

* Changed type of userptr to be void * (now matches ncurses)
* Bumped lib major version due to above.
* Changed debug output to go to a file instead of stderr, the file gets
opened when the form is posted iff one is not already open.

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Added early release version of libform - please be gentle.