feat(developer): kmc-convert: new conversion .keylayout->kmn 😎

[SabineSIL]

kmc-convert provides tooling to convert between various common keyboard description file formats. Each conversion will be implemented in its single, separate module (and each module will done in its own PR)

This PR will address the conversion keylayout → kmn

• keylayout → kmn
• xkb→ kmn
• keylayout → ldml
• xkb→ ldml
• kmn→ ldml
• msklc→ kmn
• msklc→ ldml
• ldml→ kmn
• (inkey→ kmn)
• (inkey→ ldml)

@keymanapp-test-bot skip

• #12564

[keymanapp-test-bot[bot]]

User Test Results

Test specification and instructions

User tests are not required

Test Artifacts

• Android

• iOS

  • TestFlight internal PR build version - 19.0.107 (0.12564.14439)

• macOS

• Web

• Windows

[srl295]

@SabineSIL tests look good!

I think the rule class issue could be addressed in the future also.

[jahorton]

Also, skimming through the test data and definitions, it looks like all of the "unit" tests are what I'd consider to be integration-test level. I'm not seeing any small-scale tests focused on conversion of single rules, or comparison of two intermediately-processed rules for ambiguity or duplication detection.

It might help to structure things in order to permit such lower-level tests - to ensure the basics (or at least, specific cases for the basics) are working correctly, in a white-box testing style.