Disable PredicateName and LargeNumbers rules by default

src/ameba/rule/style/large_numbers.cr

@@ -31,6 +31,7 @@ module Ameba::Rule::Style
     properties do
       description "Disallows usage of large numbers without underscore"
       int_min_digits 5
+      enabled false
     end
 
     MSG = "Large numbers should be written with underscores: %s"

src/ameba/rule/style/predicate_name.cr

@@ -32,6 +32,7 @@ module Ameba::Rule::Style
   struct PredicateName < Base
     properties do
       description "Disallows tautological predicate names"
+      enabled false
     end
 
     MSG = "Favour method name '%s?' over '%s'"