If you have presets that have brush tips associated with them, then when you create a bundle, all you have to do is add those presets to the bundle, Krita will take care of the associated brush tips itself without any outside intervention and include them “automagically”. 
This was an accidental discovery of mine that I first reported on here:
According to @tiar, this is what she intended when she created the new resource management.
I have not yet checked whether the automatic takeover also applies to textures, since there are no error messages for textures when they are added to a bundle whose presets use those textures. I think to remember that the textures have to be added even if a preset refers to them, but I would like to encourage you to try out if the textures might be added automatically even if you do NOT add them to the bundle during bundle creation.
As I said, it was a random discovery with the presets with brush tips that cause error messages when the associated brush tips are added during bundle creation in the Resource Manager - I didn’t worry about the textures that times.
Michelist