While not documented as such, it appears that the repository record is
required with trusted publishing of npm packages.
Test-bot: skip
Build-bot: skip
The build/ folder for most packages was missing due to being listed in
.gitignore.
Also, @keymanapp/ldml-keyboard-constants package was not being published
despite being a dependency of @keymanapp/kmc-keyboard.
Instead of relying on npm's use of .gitignore / .npmignore (which has
seriously wonky behaviours), we list the files that should be included
in package.json.
NPM Wonky behaviours: it seems that .npmignore causes .gitignore in the
same folder to be ignored. But, higher level .gitignore files still
affect the files included in the package, which makes
specification-by-exclusion painful (negating exclusions, etc). We do not
recommend use of .npmignore anywhere for this reason.
Splits the building of keyboardprocessor_ldml.h into a separate
tsconfig.build.json, and designates keyboardprocessor_ldml.ts as a new
Typescript/Node module @keymanapp/ldml-keyboard-constants.
Includes an example usage in the (currently unused) kmx-plus.ts.
