Update to include magic formula
Create files and folders to use subfiles package. Documention is not complete.
Document Brakes
Update Gear/Chain and Tire
Updated chassis, Environment, tires, and wheel forces
Add brake constant
Update Main SimBALink for Brake
ignore pdfs in Docs and delete pdfs
Merge pull request #2 from lordnathan0/subfile_conversion

Add Nathan's document structure using the "subfile" package, which automatically generates a master document.