make QDInstrument.dll pip-installable

[hinnefe2]

[hinnefe2]

needs to be put in the top level DLLs folder, then needs to be 'unblocked'. I only know how to do the unblocking manually though.

[jdamasco1]

https://stackoverflow.com/questions/20886450/unblock-a-file-in-windows-from-a-python-script

is probably related to this