Add `builder_describe_platform` function to builder.inc.sh, associated
documentation and unit test, and use it in Developer and Common build
scripts.
Relates-to: #11755
Use a new flag `--npm-publish` in conjunction with `publish` action,
so that the default will always be to `npm pack` if the new flag is not
specified. This flag is also guarded in the actual npm publish code to
ensure that it can only run in the appropriate CI alpha/beta/stable
environment, and not in local or test.
This then also removes the separate `pack` action.
Also removes legacy boilerplate from a number of build scripts.
Now builds from a clean repo:
developer/src/build.sh configure build test publish
* Splits kmbrowserhost into kmdbrowserhost for Developer; this means
that Developer Browser Host now inherits the Developer settings rather
than the Keyman for Windows settings, and simplifies distribution and
management. The only difference between the two is in the startup code
so this seems like a good split.
* Cleanup of various build scripts and dependencies.
Relates to #11317.
Initial baby steps for configuring build environment for Delphi and VC++
within build.sh without needing to call out to batch files.
Proof-of-concept build.sh for setup.dpr.
