Fix BR Regex

For some reason, all REGEX was using \\d instead of \d... this should fix the problem. 
And Brazilian numbers changed mobile numbers to begin with an 9 before the area code... fixed this regex too.

src/Validator/PhoneNumber/BR.php

@@ -11,19 +11,19 @@
     'code' => '55',
     'patterns' => [
         'national' => [
-            'general' => '/^[1-46-9]\\d{7,10}|5\\d{8,9}$/',
-            'fixed' => '/^1[1-9][2-5]\\d{7}|(?:[4689][1-9]|2[12478]|3[1-578]|5[13-5]|7[13-579])[2-5]\\d{7}$/',
-            'mobile' => '/^1(?:1(?:5[347]|[6-8]\\d|9\\d{1,2})|[2-9][6-9]\\d)\\d{6}|(?:[4689][1-9]|2[12478]|3[1-578]|5[13-5]|7[13-579])[6-9]\\d{7}$/',
-            'tollfree' => '/^800\\d{6,7}$/',
-            'premium' => '/^[359]00\\d{6,7}$/',
-            'shared' => '/^[34]00\\d{5}$/',
+            'general' => '/^[1-46-9]\d{7,10}|5\d{8,9}$/',
+            'fixed' => '/^1[1-9][2-5]\d{7}|(?:[4689][1-9]|2[12478]|3[1-578]|5[13-5]|7[13-579])[2-5]\d{7}$/',
+            'mobile' => '/^1(?:1(?:5[347]|[6-8]\d|9\d{1,2})|[2-9][6-9]\d)\d{6}|(?:[4689][1-9]|2[12478]|3[1-578]|5[13-5]|7[13-579])9[6-9]\d{7}$/',
+            'tollfree' => '/^800\d{6,7}$/',
+            'premium' => '/^[359]00\d{6,7}$/',
+            'shared' => '/^[34]00\d{5}$/',
             'emergency' => '/^1(?:12|28|9[023])|911$/',
         ],
         'possible' => [
-            'general' => '/^\\d{8,11}$/',
-            'mobile' => '/^\\d{10,11}$/',
-            'shared' => '/^\\d{8}$/',
-            'emergency' => '/^\\d{3}$/',
+            'general' => '/^\d{8,11}$/',
+            'mobile' => '/^\d{10,11}$/',
+            'shared' => '/^\d{8}$/',
+            'emergency' => '/^\d{3}$/',
         ],
     ],
 ];