ARM compatible docker images + setup script for Bitwarden server (Raspberry PI)

Super glad you added support for databases other than MSSQL for the Bitwarden server (see https://github.com/bitwarden/server/issues/453).

As there is now no dependency on MSSQL anymore, would be nice if you could add ARM compatible docker images for the self hosted server with a updated setup script - especially to support Bitwarden on Raspberry PI (RPI).

Btw, thanks for working on this awesome open source project :slight_smile: