Disable clearance checks

[BoostedRotary]

Like you can in RCT2 it would be a cool feature, like street running for railroads and roads that can have a bit more freedom to go elsewhere

[duncanspumpkin]

We will need to implement all of the game commands for placement before this can be implemented. I'm not sure this would be as easy to implement in locomotion. The game expects a certain order to many elements and this cheat depending on how implemented might cause crashes