Lint and test

wip #23

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1 error and 10 warnings

Process completed with exit code 12.

Logger.warn/1 is deprecated. Use Logger.warning/2 instead

Regex.regex?/1 is deprecated. Use Kernel.is_struct(term, Regex) or pattern match on %Regex{} instead

use Bitwise is deprecated. import Bitwise instead

Logger.warn/1 is deprecated. Use Logger.warning/2 instead

`pkg_configs` option has been deprecated. Please use `os_deps` option.

use Bitwise is deprecated. import Bitwise instead

Modules should have a @moduledoc tag.

Modules should have a @moduledoc tag.