Add beans, grinder & grinder setting inputs to DSx2 espresso settings page

[ebengoechea]

Add input widgets for beans, roast date, grinder model and grinder setting on DSx2 espresso settings page.

On a first stage use controls similar to DYE.

On a second stage, use popup dselector or popup menu for beans & grinder model selection, and allow users to customize grinder settings (text vs numbers, min & max, small & big increments).