Add option to adjust minimal speed and energy consumption of a CraftingMachinePrototype

[przemo1232]

Currently both consumption and speed are capped at a minimum of 20%.

Raising the consumption limit to for example 100% would allow modders to mitigate the potentially massive energy consumption reduction from efficiency modules while not banning them outright.

Lowering the speed can be used to force players to counteract the penalties of productivity modules and, if it's possible to set the limit to 0, it will be possible to effectively disable machines without scripting - for example pyanodon's alien life farms are currently disabled by script, but with this change they won't have to be.

[curiosity]

And don't forget about pollution, which is also capped at 20%.