constructor (platformDir) {
        this._cdvGradleConfigFilePath = path.join(platformDir, 'cdv-gradle-config.json');
        this._cdvGradleConfig = this._readConfig(this._cdvGradleConfigFilePath);
    }
Loads and Edits Gradle Properties File.

Do not construct this directly. Use CordovaGradleConfigParserFactory instead.

@param {String} platformDir is the path of the Android platform directory