More stage/step limiters and threaded broadcasting (in explicit RK methods)

[ranocha]

This project will continue the work discussed in #1423 and started in #1508. The basic idea is to add fields

• stage_limiter!
• step_limiter!
• thread

to more/all (explicit RK) algorithms and extend the corresponding create_cache and perform_step! methods, adding

• calls to the stage_limiter! after computing an RK stage and before evaluating the RHS at that stage
• calls to the step_limiter! after computing the new value after a step and before evaluating the RHS there
• the keyword argument thread=thread to all calls of @.. from FastBroadcast.jl and the argument thread as last argument of calculate_residuals! for adaptive methods

Citing #1508 (comment)

I enabled threaded broadcasting and stage/step limiters for

• 3Sp and 3SpFSAL low-storage methods
• 2N low-storage methods
• Tsit5
• BS3
• SSPRK methods (SSPRK22, SSPRK33, SSPRK53, SSPRK53_2N1, SSPRK53_2N2, SSPRK53_H, SSPRK63, SSPRK73, SSPRK83, SSPRK43, SSPRK432, SSPRK932, SSPRK54, SSPRK104)

Left for another PR:

• SSP RK MS methods (SSPRKMSVS43, SSPRKMSVS32): they already have limiters
• All other methods (without limiters so far)