Fix for running on Android

Works on Android (fixes #7 ).
Some adjustments are necessary to the packaging options of your app build.gradle:

...

android {
...
    packagingOptions {
        exclude 'META-INF/NOTICE.md'
        exclude 'META-INF/LICENSE.md'
        exclude 'META-INF/NOTICE.markdown'
    }
}

dependencies {
...

    implementation 'de.sfuhrm:radiobrowser4j:2.0.5';
}