add get for number lines view

Author: testica

codeeditor/src/main/java/me/testica/codeeditor/Editor.kt

@@ -79,6 +79,15 @@ class Editor(context: Context, attrs: AttributeSet) : LinearLayout(context, attr
         return editText
     }
 
+    /**
+     * Get number lines widget to access the whole API
+     * Make whatever you want, but keep in mind that you may change default behaviour.
+     * Get Fun!
+     */
+    fun getNumLinesView(): EditorNumberLines {
+        return numLinesView
+    }
+
     /**
      * Set syntax highlight rules
      * Keep in mind that rules may overlapped highlight of others, so the rule position matter