Pass all Setup() and Loop() methods into Arduino setup() and loop() functions.

ino/contact_printer/ContactPrinter.cpp

@@ -100,3 +100,7 @@ void ContactPrinter::RampTakeup(uint16_t start, uint16_t end, uint16_t time) {
 bool ContactPrinter::IsRunning () {
 	return running;
 }
+
+void ContactPrinter::Loop () {
+	drive_motor.Loop();
+}

ino/contact_printer/EncoderMotor.cpp

@@ -24,3 +24,7 @@ void EncoderMotor::Setup () {
 	digitalWrite(forward_pin, LOW);
 	digitalWrite(backward_pin, LOW);
 }
+
+void EncoderMotor::Loop () {
+	
+}

ino/contact_printer/contact_printer.ino

@@ -1,4 +1,10 @@
 #include "ContactPrinter.h";
 
-void setup () {}
+ContactPrinter contact_printer;
-void loop () {}
+
+void setup () {
+	contact_printer.Setup();
+}
+void loop () {
+	contact_printer.Loop();
+}