Merge pull request #10906 from keymanapp/chore/developer/10889-deploy-compiler-messages-to-help-site

chore(developer): deploy compiler messages to help site

fix(ios): cross-paragraph keyboard rules

chore(linux): Update debian changelog

auto: increment beta version to 17.0.281

Fixes #10889.

This involved a bit more refactoring to help-keyman-com.sh in order to
allow for multiple paths to be uploaded.

I opted _not_ to move the entire Keyman Developer documentation into
this repository, partly because a number of pages are still in PHP
rather than Markdown.

feat(windows): move the code kmshell.dpr to unit so that only the includes are in dpr 

fix(android): handle surrogate pairs in selection range indexing

test(developer): kmc unit test infrastructure messages

feat(developer): adds kmc message command

fix(ios): context-initial diacritic handling

refactor(developer): reorganize messages for adding details

refactor(developer): cleanup kmn compiler message namespaces

docs(developer): kmc-kmn api documentation and some message documentation

Merge pull request #10819 from keymanapp/chore/common/9843-keyman-touch-layout-schema-restrictive-layer-id

chore(common): loosen .keyman-touch-layout schema layer id requirements

fix(developer): make sure scroll bar appears when needed in global welcome

auto: increment beta version to 17.0.280

chore(resources): update to latest ldml: xmlns, uset

Merge branch 'refactor/developer/10207-kmn-compiler-message-namespaces' into refactor/developer/10207-message-detail

Merge branch 'docs/developer/10207-kmc-kmn-documentation' into refactor/developer/10207-kmn-compiler-message-namespaces

fix(linux): Fix libkeymancore-dev dependencies

Co-authored-by: Steven R. Loomis <srl295@gmail.com>

Realtes to #10207.

Adds a new `kmc message` command which prints detailed information about
any or all compiler messages, in JSON, text, or markdown formats.

Markdown format is emitted to file in a structured way to be deployed to
the help site automatically (coming in a subsequent commit).

auto: increment beta version to 17.0.279

This change adds `libicu-dev` as a dependency for `libkeymancore-dev`.
While it is possible to dynamically build without ICU it is required
when doing a static build.

Closes #10864 and [Debian bug #1064915](
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1064915).

fix(android/engine): Check selection indexes

Co-authored-by: Joshua Horton <joshua_horton@sil.org>