feat(medusa): Add support for filtering with gt, lt, gte and lte (#190)

- Add support for filtering with lt, gt, lte, gte in the following format: created_at[gt]=01-26-1997
- Add middleware for cleaning request queries
- Add order query validation
- Temp. disables tags in claim integration tests

packages/medusa-interfaces/src/__tests__/base-service.js

@@ -11,9 +11,6 @@ describe("BaseService", () => {
           id: "1234",
           test1: ["123", "12", "1"],
           test2: Not("this"),
-          rec: {
-            first: ["1", "2", "3"],
-          },
         },
         {
           relations: ["1234"],
@@ -25,9 +22,6 @@ describe("BaseService", () => {
           id: "1234",
           test1: In(["123", "12", "1"]),
           test2: Not("this"),
-          rec: {
-            first: In(["1", "2", "3"]),
-          },
         },
         relations: ["1234"],
       })