Prepare files for public release

src/Hub.cpp

@@ -0,0 +1,24 @@
+#include "Hub.h"
+#include "flatbuffers/SensorMessageBuilder.h"
+
+double Hub::get_position() {
+    // no-op
+    return 0;
+}
+
+void Hub::actuate(double /* position */) {
+    // no-op
+}
+
+void Hub::actuate(double /* x */, double /* y */) {
+    // no-op
+}
+
+std::vector<uint8_t> Hub::get_actuation_message() {
+    // no-op
+    return {};
+}
+
+void Hub::update_sensor_data(const Flatbuffers::sensor_value & /* value */) {
+    // no-op
+}