Makes Array Foreign an instance of ToSQLRow

For when the user wants to convert the values to foreign by themselves.

src/Database/PostgreSQL/Row.purs

@@ -14,6 +14,9 @@ class ToSQLRow a where
 class FromSQLRow a where
     fromSQLRow :: Array Foreign -> Either String a
     
+instance toSQLRowForeignArray :: ToSQLRow (Array Foreign) where
+  toSQLRow = id
+
 -- | A row with 0 fields.
 data Row0 = Row0