Routing service (#36)

routing/proto/routing.proto

@@ -0,0 +1,22 @@
+syntax = "proto3";
+
+package routing;
+import "google/protobuf/wrappers.proto";
+
+service Routing {
+	rpc Route(RouteRequest) returns (RouteResponse) {}
+}
+
+message Point {
+	google.protobuf.DoubleValue latitude = 1;
+	google.protobuf.DoubleValue longitude = 2;
+}
+
+message RouteRequest {
+	Point origin = 1;
+	Point destination = 2;
+}
+
+message RouteResponse {
+	repeated Point waypoints = 1;
+}