[Feature] Improve OBBject Registry

[hjoaquim]

1. Why? (1-3 sentences or a bullet point list):

   • Improve user experience by avoiding unnecessary confusion around the results command.

2. What? (1-3 sentences or a bullet point list):

   • results as a global command, available everywhere
   • help message on results
   • newly created OBBjects immediately available after creation
   • the obbject registry is now an instance of the session instead of a singleton
   • added flag to control number of obbject results to keep
   • added flag to control if the user wants to know when a new obbject result was added

3. Impact (1-2 sentences or a bullet point list):

   • NA / better UX

4. Testing Done:

   • Run a set of commands and access the results.

[montezdesousa]

The OBBject message goes a bit unnoticed, I'd move it next to the remaining warnings about columns and --export.

[montezdesousa]

I'm getting AttributeError: 'Namespace' object has no attribute 'columns' when running

/settings/ $ obbject_res -n 1

[hjoaquim]

I'm getting AttributeError: 'Namespace' object has no attribute 'columns' when running

/settings/ $ obbject_res -n 1

typo fixed here: 66a6cea

[hjoaquim]

The OBBject message goes a bit unnoticed, I'd move it next to the remaining warnings about columns and --export.

Addressed here: 06184de