Bugs:

- Make --env-file relative to the current working directory and error out for
invalid paths. Environment file paths set with --env-file are relative to the
current working directory while the default .env file is located in the project
directory which by default is the base directory of the Compose file.

- Fix missing service property storage_opt by updating the compose schema

- Fix build extra_hosts list format

- Remove extra error message on exec

- Fix OpenSSL version mismatch error when shelling out to the ssh client

- Add missing build flags to the native builder: platform, isolation and
extra_hosts

- Remove info message on native build

- Avoid fetching logs when service logging driver is set to 'none'

Miscellaneous:

- Add compose.yml and compose.yaml to default filename list

Signed-off-by: Javier Marcet <javier@marcet.info>