Calculate and display OEE and other shift metrics about ladder99

[bburns]

I'll work on Availability, since I need to modify the existing availability.js plugin.
Then I'll need to modify the database to handle Performance and Quality also, in the bins table and metrics view.
The Quality plugin would poll the db for s1-l1-pcgood and s1-l1-pcall, divide them, maybe write as s1-l1-quality?

[bburns]

due january

[bburns]

metrics needed:

Machine PPM parts per minute
Current PPM / Performance
Shift parts produced
Shift current parts produced performance
Shift reject count
Shift Downtime Minutes
Shift downtime availability performance
shift reject performance