Make certain profile values easily updateable from the crunch page (e.g. weapon count & model count)

[dixhuit]

Many users seem to have multiple copies of the same weapon in a single attacker profile with varied "Count" values as a convenient way to try out different combinations of weapon counts. This kinda works but you can easily bump into UC's maximum number of weapons per profile or model type sooner than you'd like. It also adds a lot of noise to the UI with many duplicated weapons all over the page.

Rather than increase the max weapons limit I'd rather look into a way for these commonly adjusted values to be more easy to tweak directly in the crunch page after a profile has been selected and save the user all the hassle of having so many repeated weapons on their profiles.

The same idea would be useful for adjusting the "Model count" value on profiles selected be the defender.

This is quite a specific UI change that I'd really like to only attempt once I've completed the planned UI framework overhaul in #31 (otherwise I'll end up doing it twice in likely 2 completely different ways).