* remove defaults
* take 2
* works now
* add changeset
* pricing module and pricing service list take null updates
* update handlers
* update product module service with take:null where relevant
* no spread
* note to self:default offset should be 0, not 15
**Why**
- We have some workflow-like flows in @medusajs/medusa. These should be moved over to the workflows package.
- Inventory Items <> Variant currently assume a 1-1 mapping. There should be support for a many-to-many mapping.
**What**
- PR introduces a feature flag for supporting many-to-many mappings for inventory and variants.
- Deletes legacy transaction handler in @medusajs/medusa.
- Adjusts existing createInventoryItems handler to remove dependency on variant data.
**Unkowns**
~~1. Couldn't find an existing test for the CreateProduct workflow. It should be tested that this still works as expected.~~
2. Have removed transaction managers as we should move to handling consistency through orchestration tooling. Are we ready for that?
**What**
- Add filter capabilities to reservation items based on:
- description query: "contains", "startsWith", "endsWith", "equals"
- date querying
**How**
- Introducing a new filtering primitive: "StringSearchOperator" resembling the "dateComparisonOperator"
Fixes CORE-1373
