Change from _mctype to otype. Prepare to modify the ui and backend to use this field.
Change from _mctype to otype. Prepare to modify the ui and backend to
use this field.

materials-commons/materialscommons.org,materials-commons/materialscommons.org,materials-commons/materialscommons.org,materials-commons/materialscommons.org,materials-commons/materialscommons.org