Holder to transpose/rotate microplate (for OpenTrons)

This allows a microplate to be placed on an OpenTrons robot at right angles to the normal orientation. The reason I made it is that I found that the Hood version of OpenTrons, if mounted in a small hood, is unable to move right to the front, and so cannot access all wells of a conventionally mounted microplate in the first row. Using this approach 4 plates can be placed in the 6 positions available in this row and all wells are accessible.

(Of course you will need to define labware with the r