This version add an interface for TACS and an optional geometry parametrization for coupling.
Main changes
TACS interface has been added in his repository. Ultimately, the interface should be moved in the official TACS repo. An example using this interface has been added.
A feature has been implemented to add a geometry parametrization to take shape changes into account for flutter constraint.
Required OpenMDAO version has been updated.
Note that the pipeline will fail because TACS is not built on the Docker image (see #1).
