sp_BlitzLock needs a facelift

[erikdarlingdata]

Is your feature request related to a problem? Please describe.
Since we're coming up on the 6th anniversary of this thing getting written on the plane ride to PASS, there are a number of issues, shortcomings, and enhancements I'd like to knock out for this at once.

• Be able to read from an event file or the ring buffer
• Improve performance generally: some of the XML stuff has obvious issues
• Fix several data duplication bugs
• Clean XML to address occasional character parsing errors
• Resolve [Database Id = 5 Object Id = 98489874] entries

You get the idea. It has gone largely untouched in important ways for a long time.

Describe the solution you'd like
I would like to work on this to implement everything in a single issue, with as few passes as possible. I just need to get in there and plug through everything.

Describe alternatives you've considered
Continue to wonder why I don't just fix this stuff.

Are you ready to build the code for the feature?
My soul is prepared! How's yours?

[BrentOzar]

Thanks for the pull request! I'm not even gonna pretend I reviewed the code in this, hahaha - you da man. Merging into the dev branch, will be in the December to Remember release with credit to you in the release notes.