V3.0.0 - order entity rework and tasking priorities

This release brings compatibility with the new features of API 2024-07, which brings a rework to the entity model surrounding orders, as well as support for tasking priority levels and cloud cover guarantees.

Notable changes in this release:

• rename Order class to Dataset
• introduce new Order and tasking Campaign class entities
• rework of orders api to support the above resources (list, get, sublist child entities)
• ordering endpoints now return the new Order entity (single, even for batch order)
• tasking search response removed the area property and added metrics
• tasking search response added priorities and cloudLevels fields describing order options
• tasking order request added priorityKey and cloud to specify additional order options