Progress: Continue working on completing the remove program.

Progress: Continue working on completing the remove program.

Implement most of the `rm` program.
There are some remaining details and I need to also test the program.

Move some of the repeated setup code into `kt_remove_setting_load_standard()`.

Add the initial settings needed to support the `--preserve-root` and `--presserve-root-not` support via the newly added `root` flag.
This work is not yet implemented and needs to be completed.

Add support for all programs to return `2` instead of `1` when `F_support_not` is an error return to the main program.
I might end up applying this behavior to all of my FLL and related programs.

The `rm` program in particular has the `--` being manually processed.
I figured given the simple nature of this program that it would be easier to manually pre-process than to utilize the custom callbacks supported by the `f_console_parameter_process()`.