Draft: Add AvectionVelocityWvaluator, enable time dependand and time interpolated advection velocity

Issue/feature addressed

This enables time-dependent Advection Velocity in the ADR solver. Advection Velocity can be either typed in in a session file, marked as USERDEFINEDTYPE="TimeDependent", or it can be read from a sequence of /fld files.

Proposed solution

Copy @ccantwel solution for the Floquet analysis from the Incompressible solver. Eventually, if the MR approved the same approach should be used there, so time interpolation is performed by the same class.

Implementation

Tests

Suggested reviewers

@ccantwel @CFD-Xing

Notes

Checklist

• Functions and classes, or changes to them, are documented.
• User guide/documentation is updated.
• Changelog is updated.
• Suitable tests added for new functionality.
• Contributed code is correctly formatted. (See the contributing guidelines).
• License added to any new files.
• No extraneous files have been added (e.g. compiler output or test data files).