Add support for VRC720 regulators

src/main.tsp

@@ -25,6 +25,7 @@ import "./vaillant/15.392.tsp";
 import "./vaillant/15.430.tsp";
 import "./vaillant/15.470.tsp";
 import "./vaillant/15.700.tsp";
+import "./vaillant/15.basv3.tsp";
 import "./vaillant/15.ctlv2.tsp";
 import "./vaillant/15.e7c.tsp";
 import "./vaillant/15.e7f.tsp";