metal-cli-v0.6.0-alpha3

Changelog

10e9e19 Merge pull request #146 from equinix/id-and-project-id
523e2d7 Merge pull request #148 from cpanato/update-readme
270e31f Merge pull request #149 from cpanato/support-page
6765c61 Merge pull request #150 from cpanato/go116
ab63629 add hack directory to hold tools
b444fd5 avoid argument conflict with default project id
269eb43 ci: update base branch to main
2ffa5ba go: upgrade to use go 1.16
8ccda81 makefile: fix some issues and update golangci-lint
97ef14c prefer device id retrieve argument when project id is also available
e813b74 readme: update table of contents