Added support to phone mask with country code and without area code

[jbsathler]

Added support to phone numbers with country code, between available masks. i.e.:

+55 (11) 1234-5678
+55 (11) 9-1234-5678

and added support to phone numbers without area code, already available on assisrafael/angular-input-masks, between available masks. i.e.:

1234-5678
9-1234-5678

[coveralls]

Coverage remained the same at 100.0% when pulling 47d9358 on jbsathler:master into 764eb9b on the-darc:master.