going back to non-big-word mode!

Revert "fixes to just print values.  send mode not working right now."

This reverts commit 24172cb15d74ab9f29424005258f601f11f90d18.
going back to non-big-word mode

Revert "rewrite to use one big word per adc instead of 2 byte words per sensor."

This reverts commit 6d59d4d8ee3583001db6961c327aa0c4e0d1e01b.
add the 'bigword' version of keyosc for later reference perhaps.  code not used!