Bundle latest cfn-lint

[PatMyron]

I like that cfnLint.path lets you customize which version of cfn-lint the extension uses, but it might help those that haven't installed cfn-lint if the extension bundled the latest version of cfn-lint by default

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The online demo pre-configures the environment with this dependency if anyone is having installation problems

[miparnisari]

https://stackoverflow.com/a/106730/1623249

It boils down to: py2exe on windows, Freeze on Linux, and py2app on Mac.

And there's also https://www.pyinstaller.org/ which seems to be multi-platform