TX simulation button

[mjadach-iv]

Add Simulate Button (outlined version) on the left side of the EXECUTE buttons to run a simulation.
After pressing it, the loader inside should show up, like on the EXECUTE buttons.
When the simulation is finished, Simulation Success should show in the button in 2 lines and small font, so the button doesn't grow, also a tick should show inside the button on the left.
Use the simulation techniqe we have now.