#823 - Adding OkHttp dependency. Initial setup of JavaFileSource as a singleton class.

android/java/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxgl/lib/util/JavaFileSource.java

@@ -0,0 +1,24 @@
+package com.mapbox.mapboxgl.lib.util;
+
+public class JavaFileSource {
+
+    private static JavaFileSource instance = null;
+
+    /**
+     * Private Constructor to support Singleton pattern
+     */
+    private JavaFileSource() {
+        super();
+    }
+
+    /**
+     * Get the singleton instance of JavaFileSource
+     * @return Reference to the Singleton Instance of JavaFileSource
+     */
+    public static JavaFileSource getInstance() {
+        if (instance == null) {
+            instance = new JavaFileSource();
+        }
+        return instance;
+    }
+}