Reimplement the PhoneNumberFormattingTextWatcher

a. Built the external/libphonenumberutil into the ext.jar. The file size increased 50K, the phone number meta file is 90K before the compression.
b. Used the external/libphonenumberutil to format the phone number for about 200 countries.
c. Beside the phone number formatting, the external/libphonenumberutil will also be used for phonenumber match and international dialing.

Change-Id: Ie5165dc60d66e1eddab7134725a8d1d1c826434a