Got started on database docs

I've been cleaning up the code a bit and then cleaned up the page on Block Pipelines: https://github.com/laforge49/JFile/wiki/Block-Pipelines

Then I wrote a new page on DB: https://github.com/laforge49/JFile/wiki/DB

I have had too many distractions on my time. Hopefully now I can work through the needed docs and release JFile 2 this week.