- Fixing block diagram generation for signal paths
- DOF has simpler interface for specifying just a DC actuation instead of using LocalDegreesOfFreedom
- This also allows user to specify their own AC connections to the DOF.AC.i and DOF.AC.o as they see fit
- Reworking signal node and port connections and attached_to attributes so they work
- Wires now connect anything to anything, had some logic about input and output that isn't needed anymore. Wires also have a gain now for simply rescaling inputs before summing with multiple other signal nodes