Bug fix in single qubit construction via QIR

Target vectors for QIRsingle need to be in descending order.
QIR was not sorting them. Now it is.
v0.9.5: bug fix and examples update for v0.9.4

QIR was improperly constructing QIRsingle gates. Targets
needed to be sorted in descending order upon construction.
The examples were also updated to reflect the v0.9.4 changes
to circuit construction.