[NEW] "check", "debugImplementation", "compileOnly", "testInstrumentationRunner", "signingConfig signingConfigs.release" and "ext.enableCrashlytics = true" conversions.

[Improved] Conversion for implementation/kapt/etc doesn't require the dependencies { } block anymore. Which means, you can now copy implementation '...' from GitHub and run the script without any parameters; it will read the clipboard, convert and save back the converted value (which should be implementation("...")).

[Fixed] few issues like closing the wrong number of parentheses on proguardFiles(...).