More closely align cookbook with common tar functionality

[bbbco]

This will better enable users to use the cookbook, as this more closely aligns with how tar parameters are actually interacted with.

• Allows users to specify specific shell globs to use in the extract_list
• Allows users to specify files to exclude (via shell globs again)
• Allows users to specify a level to strip components (simulating the --strip-components parameter).
• Allows users to specify the mode to overwrite file permissions

I also added tests for the new features.

[irabinovitch]

@bbbco Thanks for writing this up! Can you take a look at the rubocop failures?

In the meantime paging a few folks for their feedback

CC: @ooyala/open-source-tar-cookbook @Quanqued @edanaher @kbruner

[bbbco]

Yeah no problem! I tweaked a couple of things on the spec and forgot to run rubocop. Will fix up shortly.

[jorhett]

sorry we dropped the ball due to some staff changes. I'll review this and get back to you soon

[bbbco]

FWIW, we decided to move on from this cookbook, mainly because Ruby's Tar Reader cannot handle reading big files. We are using a cookbook that wraps the distro's tar command underneath. Thanks!

[ghost]

Will this be merged?