Morsecalc refactor (#229)

Morsecalc refactor (#229)

* Added Morse code based RPN calculator

* added manual and memory register

* fixed morsecalc negative indicator, edited header comment

* adjusted stack display controls

* Fixed warnings. Added calculator token aliasing ability. Added binary shorthand for numeral entry. Extended morse code binary tree.

* ui tweaks

* Update movement_config.h

* silence warning

* Reorganized codebase and simplified morse code reading routines.

* added 'quit if submission is empty' behavior

* reverted rules.mk change for merge into main

* corrected timeout behavior

* consolidated morsecode lib into one file; deleted old mc.c mc.h

* consolidated morsecode lib into one file; deleted old mc.c mc.h

* removed specious null in morsecode bintree string

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Co-authored-by: Christian Chapman <user@debian>
Co-authored-by: joeycastillo <joeycastillo@utexas.edu>