feat(core): add sample file, update union #5015 🙀

Co-authored-by: Marc Durdin <marc@durdin.net>

Review comments:
- moved KMXPLUSINFO into separate struct
- created resource/standards-data/ldml-keyboards for CLDR data
- corrected Khmer err

Co-authored-by: Marc Durdin <marc@durdin.net>

- uberstruct

- also snapshot dtd

- pascal fix

- use a constant, KM_KBP_EVENT_FLAG_DEFAULT for 0
- update pascal and python
- update linux and windows

- uint16_t
- defined km_kbp_event_flags to define the bitfield
- bitfield has value KM_KBP_EVENT_FLAG_TOUCH for touch events
- ignored everywhere, currently

feat(core): constant generator between core and developer 🙀

Co-authored-by: Marc Durdin <marc@durdin.net>

- resolved review comments

- change to manual regen of the .h file

- seems to build every time, but works

- update build
- add more constants from binary format

- merge tsconfig projects…for now

- one attempt

feat(common): LDML keyboard_processor infrastructure 🙀

chore(common): add KF_KMXPLUS dwFlag value 🙀

chore(common): add VERSION_160 to headers 🙀

* Enables identification of KMXPlus files in processor factory
* Adds a stub action to generate an 'a' output character
* Adds a passing null_keyboard unit test for a hypothetical ldml
  keyboard

Establishes baseline class and headers, and stub for loading LDML
keyboards embedded in kmxplus files.

Part of #7045.

Indicates that the .kmx file has additional header structure immediately
following the COMP_KEYBOARD header. Used by KMXPlus file format for
supporting LDML keyboards. Requires VERSION_160 or higher in keyboard
file.

Fixes #7044.

Groundwork for KMXPlus file format for LDML keyboard support.

auto: increment master version to 16.0.44

change(web): updates mobile screen dimension detection code ⬅️

change(web): rotation polish - OSK reload no longer needed ⬅️