Release v0.1.0-alpha

Release of 0.1.0-alpha (#1)

* Add basic shuffle service defenition

* Add .editorconfig file

* Update project structure

* Update shuffle sign tx, add comments

* move `RoomAccessJWT` to `shuffle_service`

* Add timestamp to join room request

* Refactor types and strucutres (#2)

* Refactor types

* Small change