Adds a function that allows the user to add some noise, then Run/Relax/Minimize for a specified amount of wallclock time or (for Relax/Minimize) if the solver converges. This is useful for stiff problems where one particular solver gets stuck (In my experience, this can happen with e.g. hysteresis loops at small external fields), to help jiggle out of a local minimum.

• noise, Runwhile, Relax, Minimize , are each consecutively called for some user-input wallclock time. If a user wants a different order (say, no Run), they can just input 0 walltime, judiciously. This can also be looped in a while(for) loop to keep cycling between run->relax->minimize until it converges.
• The current implementation is a bit messy, I basically copied Minimize/Relax verbatim. It would be cleaner to integrate the inputs/flags into existing Relax/Minimize directly (or possibly using injections?) but I didn't want to mess with such sensitive core functions.
• Introduces a new magnetization Config, CurrentMag. This just makes the current magnetization into a Config. This is mostly useful for adding noise, as "m=Currentmag().add(0.1,randommag())". Works with stuff like .transl() as one would expect. Can be a bit memory intensive as it stores a Hostcopy of the magnetization whereas Configs usually are a mathematical function. I have not seen any issues with e.g. memory leaks.