Fix dash parser and more refactor

- Add new itags

utils/Utils.java

@@ -0,0 +1,20 @@
+package org.schabi.newpipe.extractor.utils;
+
+public class Utils {
+    private Utils() {
+        //no instance
+    }
+
+    /**
+     * Remove all non-digit characters from a string.<p>
+     * Examples:<br/>
+     * <ul><li>1 234 567 views -> 1234567</li>
+     * <li>$ 31,133.124 -> 31133124</li></ul>
+     *
+     * @param toRemove string to remove non-digit chars
+     * @return a string that contains only digits
+     */
+    public static String removeNonDigitCharacters(String toRemove) {
+        return toRemove.replaceAll("\\D+", "");
+    }
+}