Replace usage of @bitcast with safer alternatives, it needs to work in debug builds

Add the ability to save/load what options you have selected to easily generate new seeds with the same settings. Could also ensure race seed is always made correctly and easily.

With recent changes, most guides that link to another guide on the site need to be updated with a new link.

This should be pretty easy to accomplish:

1. Find links to guides in the markdown files (located in the guides directory)
2. Find the new links that should replaced the old links
3. Replace the links