Toggle Hard and Soft Light in Test Strips

Can now make a test strip using hard and/or soft light.
Changed display of LED brightness to percentages 0= off 100=full on.
Still not based on actual brightness or even approximate.
Refined the Min and Max brightnesses based on some testing.
Store the test strip grade in EEPROM.
Set grade in edit page moved to ‘9’ from ‘D’ for consistency.
Added help test to edit page. Still need to clean up.