Add difficulty setting to instant build and deconstruct

The biggest difference of this game with other factory game is the time and logistics needed for building to construct and deconstruct, disabling this requirement would make CoI more familiar with other facotry game where you can easily adjust your factory layout after learning something new. No more restarting the game just because it take forever to rebuild the factory, or need to give unreasonable empty space just in case. This is not the same with unity quick action, instead it will be like in sandbox mode, no waiting, at all.
Of course this setting would make the game significantly easier, it's difficulty setting after all, similar with allowing mixed cargo setting.

As you said:
That's a sandbox thing imo.
It is essential part of the gameplay.

"It is essential part of the gameplay."
so does the mixed ore sorting, i just want ability to opt out of this mechanic.