Building pbandk requires android

[JohnLCaron]

0.14.3-SNAPSHOT Head (11/18/22)

./gradlew clean

The Kotlin source set androidAndroidTestRelease was configured but not added to any Kotlin compilation. You can add a source set to a target's compilation by connecting it with the compilation's default source set using 'dependsOn'.
See https://kotlinlang.org/docs/reference/building-mpp-with-gradle.html#connecting-source-sets

$ ./gradlew assemble

FAILURE: Build failed with an exception.

* What went wrong:
Could not determine the dependencies of task ':pbandk-runtime:compileDebugAidl'.
> SDK location not found. Define location with an ANDROID_SDK_ROOT environment variable or by setting the sdk.dir path in your project's local properties file at '/home/snake/dev/github/pbandk/local.properties'.

Would be nice if it skipped building android if SDK is not found.
Sorry I dont know enough gradle to send a PR.

./gradlew --version

---

Gradle 7.3

Build time: 2021-11-09 20:40:36 UTC
Revision: 96754b8c44399658178a768ac764d727c2addb37

Kotlin: 1.5.31
Groovy: 3.0.9
Ant: Apache Ant(TM) version 1.10.11 compiled on July 10 2021
JVM: 17.0.1 (Oracle Corporation 17.0.1+12-LTS-39)
OS: Linux 5.15.0-53-generic amd64

[JohnLCaron]

Also happens on windows:

$ ./gradlew.bat --version

---

Gradle 7.3

Build time: 2021-11-09 20:40:36 UTC
Revision: 96754b8c44399658178a768ac764d727c2addb37

Kotlin: 1.5.31
Groovy: 3.0.9
Ant: Apache Ant(TM) version 1.10.11 compiled on July 10 2021
JVM: 17.0.5 (Oracle Corporation 17.0.5+9-LTS-191)
OS: Windows 10 10.0 amd64

[garyp]

We don't have resources right now to implement this but would welcome a contribution. For someone familiar with Gradle (or wanting to learn it), this probably wouldn't be a very difficult task. I've personally often wanted the ability to tell Gradle to skip building certain platforms (or, conversely, build for only a single platform) while doing development since a generic ./gradlew assemble takes a very long time.

[garyp]

Having this would also help with implementing one of the ideas in #220