Fixes#10872. Modifies #10845.
developer-utils is also used by server. Because osk.ts depends on
common-types, this introduced a transitive dependency for
developer-utils. Packaging server for deployment as part of Keyman
Developer is fragile and we need to hand-code our internal dependencies,
as npm bundling struggles with in-repo dependencies. So we need to avoid
introducing extra dependencies into developer-utils at this time.
It turns out that osk.ts is used by kmc-kmn and kmc-analyze. kmc-analyze
already has a dependency on kmc-kmn, so it makes sense to put it there.
Adds support for calculating isRTL and license fields in .model_info
compiler.
Also:
* establishes @keymanapp/developer-utils shared module
* moves license validation into @keymanapp/developer-utils
* refactors kmc-model-info to a class and general cleanup
