Resolves Gradle deprecation and language version warnings
```gradle
Java compiler version 21 has deprecated support for compiling with source/target version 8.
```
The `java.toolchain.languageVersion` syntax is a superset that covers the previous syntax `android.compileOptions`
Move mac-specific build scripts and functions into our established
patterns for scripts under resources/build:
* new mac/mac.inc.sh for mac-specific functions, from mac-utils.inc.sh,
utils.inc.sh, builder-basic.inc.sh
* move other mac-specific scripts into mac/
Relates-to: #14065
Build-bot: build
Test-bot: skip
Clarifies the confusing builder.inc.sh / build-utils.sh distinction by
giving the scripts more appropriate names. Most build scripts should use
builder-full.inc.sh; some helper scripts can use builder-basic.inc.sh.
Documented in resources/build/README.md.
Renames:
* resources/build/builder.inc.sh to resources/build/builder-full.inc.sh
* resources/build/build-utils.sh to resources/build/builder-basic.inc.sh
Other changes:
* Moves Android-specific functions out of builder-basic.inc.sh and into
android/build.sh.
* Renames functions in builder-basic.inc.sh
More functions may be moved from builder-basic.inc.sh into utils.inc.sh
or other scripts in the future.
Fixes: #14065
Build-bot: build all
Test-bot: skip
Adds documentation for various functions, removes unused functions (a
couple of simple, very lightly used functions were unDRYed; these could
go back the other way across all shell scripts if necessary). TODO items
noted for follow-up refactoring.
Fixes: #14275
Relates-to: #14269
Build-bot: build all
Test-bot: skip
This makes use of the new functionality refactored in the previous
commit by replacing the use of the `wzzip` function with `add_zip_files`.
Test-bot: skip
Previously the builder scripts defined a readonly `VERSION` environment
variable for the Keyman version. That caused problems when another
(external) script tried to define a `VERSION` variable. We encountered
this problem when trying to move the TC build steps of a configuration
into a single script (#13399) when we tried to source `~/.nvm/nvm.sh`.
This change uses a Keyman specific prefix for the version variables and
renames `VERSION` → `KEYMAN_VERSION` etc. Unfortunately these variables
are used in a lot of places, so this turned out to be a bit of a yak
shave.
Test-bot: skip
From the days of stable-12.0 when the FirstVoices for Android app was configured in the main repo, the SystemKeyboard initialized with
3148aa7b8c/oem/firstvoices/android/app/src/main/java/com/firstvoices/keyboards/SystemKeyboard.java (L111-L113)
In the scenario FV for Android installed and enabled as the system keyboard (from the Android settings menu instead of launching the FV app), the initial usage as a system keyboard would have an uninitialized keyboard key (language and keyboard ID pairing to determine the current keyboard).
Fixes: FV-ANDROID-5G
Fixes: FV-ANDROID-7N
Check updates meaning has slightly changed it is now automatic updates
and it will now check, download and when possible start the install.
Previously it just meant a check for upates was made and notified
the user of updates.
Fixes:#13114
# Keyman Conventional Commit suggestions:
#
# - Link to a Sentry issue with git trailer:
# Fixes: _MODULE_-_ID_
# - Give credit to co-authors:
# Co-authored-by: _Name_ <_email_>
# - Use imperative, present tense ('attach' not 'attaches', 'attached' etc)
# - Don't include a period at the end of the title
# - Always include a blank line before trailers
# - More: https://github.com/keymanapp/keyman/wiki/Pull-Request-and-Commit-workflow-notes
