Use all the arduino IDE compiler warning settings

[jantje]

Originally Arduino IDE only supported to compile with no warning.
Sloeber IDE also supports -wall (and you can use any settings using the add to command line fields)

Later Arduino IDE switched to using warning level settings "none" "more" and "all" configurable in the platform.txtx

In Sloeber 4.4 the sloeber options translate to none and all. So more is not selectable in Sloeber.
This did not work properly but is fixed in #1333

This issue is to add a more and custom to Sloeber warning level (also show the exact compile option in the gui)