#57_Category CRUD

[JoaquinMartina]

• add Category commands

• add Category Handler Interfaces

• add Category Handlers

• add CategorySchema

• add Category Adapters

• add Category Actions

• add Category Routes

• add imports Category in inversify.config

• fix EditHandler - implements EntityNotFoud and DatabaseError

• fix Show - ShowAll Actions

• fix relations typeorm in entities Product and Category