This PR does a cleanup on the environment variables
as now they are kind-off a public contract, which
means its better to be verbose and meaningful as possible. Once
the release is done, it would be harder to do the same.
This has the following changes:
- Rename `REG` prefix to `REGISTRY`
- Change `REG_INCLUSTER_STORAGE_S3_BUCKETNAME `to `REGISTRY_INCLUSTER_STORAGE_S3_BUCKET_NAME`
- Change `COMPONENT_PROXY_SERVICE_SERVICETYPE` to `COMPONENT_PROXY_SERVICE_TYPE`
Signed-off-by: Tarun Pothulapati <tarun@gitpod.io>
