Add support for unquoted env vars

Copy the following into your WORKSPACE file to use rules_envfile at release v1.1.0

http_archive(
    name = "io_worldpeace_rules_envfile",
    sha256 = "b9ea6a96c3ff48e073401db46b64ccdfa190b5567f40a13911130a3a2c8b92c0",
    strip_prefix = "rules_envfile-1.1.0",
    urls = ["https://github.com/worldpeaceio/rules_envfile/releases/download/v1.1.0/rules_envfile-1.1.0.tar.gz"]
)

Initial release

Copy the following into your WORKSPACE file to use rules_envfile at release v1.0.0

http_archive(
    name = "io_worldpeace_rules_envfile",
    sha256 = "6314dec7debeb1a554ac623e9d2eca6565205003aea263aee6957b703fc80a94",
    strip_prefix = "rules_envfile-1.0.0",
    urls = ["https://github.com/worldpeaceio/rules_envfile/archive/refs/tags/v1.0.0.tar.gz"]
)