post https://api.fabric.inc/v3/categories
Items are organized within categories, which form the original hierarchical tree structure with multiple levels of nested categories.
This endpoint is used to create a new category within this structure.
Note:
1. Upon onboarding a new merchant to fabric Products, a root category is automatically generated.
2. This endpoint does not support adding of children categories. Use the Update category endpoint - PUT /categories/{id}
endpoint to add child categories.