Feature request: gradle support

[SSopin]

Please provide gradle wrapper to use the plugin.

Temporary workaround:

String classDir = project.buildDir.absolutePath + '\\classes'
        if(new File(classDir).exists()) {
            ant.taskdef(name: 'highwheel',
                    classname: 'org.pitest.highwheel.ant.AnalyseTask',
                    classpath: configurations.highwheel.asPath
            )
            String rep = "${reportsDir}" + "\\highwheel"
            def reports = new File(rep)
            if (!reports.exists()) reports.mkdirs()

            def path = ant.path {
                dirset(dir: 'build/classes') {
                    include = '*'
                }
            }

            ant.highwheel(analysisPath: path, filter: '*com.example.*', outputDir: "${reportsDir}/highwheel")