Added support to phone mask with country code

[jbsathler]

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

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

[coveralls]

Coverage decreased (-0.5%) to 96.78% when pulling 8c79e9a on jbsathler:master into 1996e11 on assisrafael:master.

[AlexandreBarroso]

format Brasil angular2-text-mask Brasil , phone, cpf, rg,cnpj, cep.

static phoneMask = ['(', /[1-9]/, /\d/, ')', ' ', /\d/ , /\d/ , /\d/, /\d/, /\d/, '-', /\d/, /\d/, /\d/, /\d/];
static rgMask =  [ /\d/ , /\d/ , /\d/, /\d/, /\d/, /\d/, /\d/, /\d/, '-', /\d/];
static cpfMask =  [ /\d/ , /\d/, /\d/, '.', /\d/, /\d/, /\d/, '.', /\d/ , /\d/, /\d/, '-', /\d/, /\d/,];
static cnpjMask = [ /\d/ , /\d/, '.', /\d/, /\d/, /\d/, '.', /\d/ , /\d/, /\d/, '/', /\d/, /\d/,/\d/, /\d/, '-', /\d/, /\d/,];
static cepMask =  [/\d/ , /\d/, /\d/, /\d/, /\d/, '-', /\d/, /\d/, /\d/];

[assisrafael]

Thank you for the pull request.
However it does not pass all tests. Can you fix this?

[assisrafael]

Fixed by #299

[FabioMorcillo]

How i can disable country code from ui-br-phone-number ?

Thank you,