Content: New transmission type, CVT

Added Continuously Variable Transmissions
-Automatically changes ratio of first gear to keep input rpm at a target
rpm.
-Has a discrete second gear for reversing.
-Limited torque ratings, and heavier than an equivalent manual
transmission would be.
Fixed typo in CVT
Merge pull request #16 from Fervidusletum/CVT

Content: New transmission type, CVT