[Feature Request] Centralize searching for N number of identical objects

[Griatch]

Is your feature request related to a problem? Please describe.

In PR #3433, there, @InspectorCaracal creates a helper class for allowing get/drop/give default commands to manipulate stacks, such as give 3 apples. This kind of thing seems like something we should investigate more fundamental support for.

Describe the solution you'd like

Add DefaultObject.search support for input on the form 3 apples, and make it clear that this should return 3 instances of objects identified by apples. We have support for disambiguation syntax, like apple-3, so it ought to be possible to do something similar for fetching stacks of identical items as well. The evennia.utils.utils.group_objects_by_key_and_desc could be looked at for detecting stacks.

Alternatives

If adding search-support is deemed too compex or heavy, one could also picture adding/extracting helper tools dealing with stack handling into one central place so devs don't need to implement or find it spread out across different default commands.

Additional context