GitLab

* [BREAK] proto auto compiled by gradle

* [BREAK] move proto to submodule

* update gitmodules

* [BREAK] move proto to submodule

* move proto to submodule

* fix merge conflict

* fix github action after merging

* fix merge conflicts and del submodule

* upload the proto

1. During the conversion of Morphia calls to the new API, some of the `Filter.eq()` calls had their `field` set to `playerId` due to a copy/paste typo.

2. Morphia 2 switches to the codec system, so anything that will be serialized in the pipeline requires the `@Entity` annotation.