Add Protobuf with Testing + Codegen (#7)

Reviewed-on: #7
Reviewed-by: Ivan Malison <ivanmalison@gmail.com>
Co-authored-by: Mike Kalange <countablecloud@gmail.com>
Co-committed-by: Mike Kalange <countablecloud@gmail.com>

rbproto/shot.proto

@@ -0,0 +1,27 @@
+syntax = "proto3";
+
+package serialized_shot;
+
+message Point {
+  float x = 1;
+  float y = 2;
+  int32 count = 3;
+}
+
+message Path {
+  int32 start_frame = 1;
+  int32 end_frame = 2;
+  bool is_static = 3;
+  repeated Point points = 4;
+}
+
+message BallPaths {
+  int32 ball_identifier = 1;
+  repeated Path paths = 2;
+}
+
+message Shot {
+  int32 start_frame = 1;
+  int32 end_frame = 2;
+  repeated BallPaths ball_paths = 3;
+}