Feature: optional action for rltt_run_training_program when the same training program is running

[maggaou]

There is no reason to make separate key binds for rltt_run_training_program, togglemenu rltrainingtimer, etc. This is especially important when having a tenkeyless keyboard which doesn't offer many extra keys.

rltt_run_training_program could have some other action when the same training is active. When training program abc is currently running, rltt_run_training_program abc could provide one of these actions

• default: the training program will restart normally from the beginning
• display the training program menu to choose other training, to end the training or to pause the training
• pause/unpause the current training
• complete current training pack (I'm not sure if this is different action from unpausing/resume)
• skip the current step and launch the next one (training menu should also include this)

[Timmeey86]

rltt_run_training_program is a call interface so other plugins can trigger the start of a training program, while togglemenu rltrainingtimer opens or closes the UI which is supposed to be used by the player.