Was able to get this to "work" by using the libraries supplied here: https://www.thingiverse.com/thing:3086882. The new TM1637 library has changed since you originally posted this.
However, when I turn the encoder clockwise, the display number increases by two, then to 0, then by two, then to 0, etc. (Example: 100, 0, 102, 0, 104, 0, etc.). When I turn the encoder counter-clockwise, the display number has the same affect, except by increments of 4 (Example: 100, 0, 104, 0, 108, 0, etc.) The stepper motor stops on 0 and moves otherwise.
Pushing the encoder button does nothing.