Add support for missing phone number types

[cottonman132]

This PR adds support for validation for the missing phone number types.

Newly supported phone types:

• tollFree
• premiumRate
• sharedCost
• presonalNumber
• uan
• pager
• voiceMail

Merging this PR resolves #68

[cedvdb]

Thanks, Simpler than expected. Tests are needed to test the new types though

[cedvdb]

To cover more surface it would be nice to add a negative tests somewhere too. Something like:

        expect(
          Validator.validateWithLength(
            isoCode,
            examples.pager,     // assuming the pager example is not a valid mobile 
            PhoneNumberType.mobile,
          ),
          isFalse,
        );

[cottonman132]

Alright, I'll add some

[cedvdb]

Thanks for the PR and tests, very clean. Just one comment to resolve then we can ship this.