Add and/or params for complex boolean logic

* Add support for and/or params in GET, POST, PATCH and DELETE
* Restrict usage of IN in and/or to be inside parens e.g. in.(1,2,3)
* Allow quoting operators for values that have ',)' chars
  inside and/or e.g. eq."(entity,1)"

test/fixtures/privileges.sql

@@ -53,6 +53,9 @@ GRANT ALL ON TABLE
     , images_base64
     , w_or_wo_comma_names
     , items_with_different_col_types
+    , entities
+    , child_entities
+    , grandchild_entities
 TO postgrest_test_anonymous;
 
 GRANT INSERT ON TABLE insertonly TO postgrest_test_anonymous;