Add lidar grpc files.

lidar/protos/lidarService.proto

@@ -0,0 +1,28 @@
+syntax = "proto3";
+
+package lidar;
+
+message LidarMap{
+    repeated int32 x = 1;
+    repeated int32 y = 2;
+}
+
+message LidarRequest{
+    bool continuous = 1;
+    int32 readRate = 2;
+    int32 numMaps = 3;
+}
+
+message StopRequest{
+    bool stop = 1;
+}
+
+message StopResponse{
+    bool stopped = 1;
+}
+
+
+service LidarService{
+    rpc GetMaps(LidarRequest) returns (stream LidarMap) {}
+    rpc Stop(StopRequest) returns (StopResponse) {}
+}