[ocu-472] basic smithyctl boilerplate + small fixes

[andream16]

Re-opened from #705

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• Adding boilerplate for smithyctl commands. Will open another PR shortly implementing packaging.
• Fixing a small bug on V1 Types parsing. Also moving exported code in pkg
• Making sure that we can test every single go test file on CI - some were being skipped and now it's fixed. Opened https://linear.app/smithy/issue/OCU-482/make-sure-git-cloner-integration-test-works-on-ci to tackle an issue that I found on CI with a test. I spent some time on it but it would be better for me to focus on what matters more right now. I have an action to work on this when I have more time.
• Fixed an issue with the bandit scanner not building correctly due to wrong import
• Refreshed all dependencies
• Make sure that every single test in the repo is executed and passes