Add support for custom cmake version not available via sdkmanager - Android, Install Missing Android Tools step

Description of the feature request

Android Gradle Plugin supports cmake versions installed outside of Android SDK: Menambahkan kode C dan C++ ke project Anda 聽|聽 Developer Android 聽|聽 Android Developers

install-missing-android-tools step could also support them by installation using brew or apt-get respectively.

More details: Add support for CMake installation 路 Issue #41 路 bitrise-steplib/steps-install-missing-android-tools 路 GitHub

Thanks for submitting #feature-request here too, @koral! :slight_smile: