KMA-413 Publish AC KMM's backend.native dependency with Kotlin-for-IDE

AppCode KMM uses parts of `backend.native` for its Kotlin-ObjC
cross-resolve. Thus, this IDE dependency needs to be kept up-to-date
with the other Kotlin compiler for IDE artifacts. This commit integrates
a stripped down version into the existing `ide-plugin-dependencies`
build infrastructure to make it easier to keep them in sync.

Implementation details:
* Proguard-based removal of code irrelevant for IDE for smaller jar size
* Publication of non-stripped-down sources for better IDE experience

settings.gradle

@@ -358,6 +358,7 @@ if (!buildProperties.inJpsBuildIdeaSync) {
             ":prepare:ide-plugin-dependencies:sam-with-receiver-compiler-plugin-for-ide",
             ":prepare:ide-plugin-dependencies:parcelize-compiler-plugin-for-ide",
             ":prepare:ide-plugin-dependencies:lombok-compiler-plugin-for-ide",
+            ":prepare:ide-plugin-dependencies:kotlin-backend-native-for-ide",
             ":prepare:ide-plugin-dependencies:tests-common-tests-for-ide",
             ":prepare:ide-plugin-dependencies:compiler-components-for-jps",
             ":prepare:ide-plugin-dependencies:kotlin-compiler-testdata-for-ide",