Implemented nearby button that displays wifi sharing intent and long press button that opens wifi qr share fragment

Test: locally with phone
Change-Id: I73663cd3e9e86431a9264925661159fbcd16b9d3
Merged-In: I931aabaada09c87b4a7936bcde4fcff8bc237dd0

src/com/android/settings/wifi/dpp/WifiDppUtils.java

@@ -149,7 +149,7 @@ public class WifiDppUtils {
         return wifiConfiguration.preSharedKey;
     }
 
-    private static String removeFirstAndLastDoubleQuotes(String str) {
+    static String removeFirstAndLastDoubleQuotes(String str) {
         if (TextUtils.isEmpty(str)) {
             return str;
         }