Add a building number with letter to German speaking locales.

[markuspoerschke]

In Austria, Germany, and Switzerland a building number can have a letter as a suffix. Example: Hauptstraße 23a.

[fzaninotto]

Tests fail

[markuspoerschke]

The test is based on fortuity. Changing the test to the following solved the problem:

public function testMobilePhoneNumberStartWith9Returns9yxxxxxx()
    {
        $mobileNumber = $this->faker->mobileNumber();
        $mobileNumber = $this->faker->mobileNumber();
        $mobileNumber = $this->faker->mobileNumber();
        $mobileNumber = $this->faker->mobileNumber();
        $mobileNumber = $this->faker->mobileNumber();
        $mobileNumber = $this->faker->mobileNumber();
        $startsWith9 = false;
        while (!$startsWith9) {
            $mobileNumber = $this->faker->mobileNumber();
            $startsWith9 = preg_match('/^(\+65|65)?\s*9/', $mobileNumber);
        }

        $this->assertRegExp('/^(\+65|65)?\s*9\s*[0-8]{3}\s*\d{4}$/', $mobileNumber);
    }

I fixed the test by resetting the seed.

[fzaninotto]

Thanks!

[markuspoerschke]

:-) Thanks for merging!