Implement map marking features

Teleport still exists on fish hook mark.
Added mapMark-related protos.
Map marking data is stored in players collection.

proto/MarkMapRsp.proto

@@ -0,0 +1,18 @@
+syntax = "proto3";
+
+option java_package = "emu.grasscutter.net.proto";
+
+import "MapMarkPoint.proto";
+
+message MarkMapRsp {
+  enum CmdId {
+    option allow_alias = true;
+    NONE = 0;
+    ENET_CHANNEL_ID = 0;
+    ENET_IS_RELIABLE = 1;
+    CMD_ID = 3011;
+  }
+
+  int32 retcode = 1;
+  repeated MapMarkPoint mark_list = 2;
+}