- Added a MssqlRepository

- Adapter some code to allow more flexibility for the new LDAP adapter from ulmus-ldap.
- Insert's fields are now escaped by default.
- A new RelationBuilder was added, a lot of code from the EntityTrait was moved into this. Some code from the Repository class will need to be moved there too.

src/Adapter/MySQL.php

@@ -131,6 +131,9 @@ class MySQL implements AdapterInterface {
             case static::IDENTIFIER_TABLE:
             case static::IDENTIFIER_FIELD:
                 return "`" . str_replace("`", "``", $segment) . "`";
+
+            case static::IDENTIFIER_VALUE:
+                return "\"$segment\"";
         }
     }