sixDoFRigidBodyMotion/sixDoFRigidBodyMotionSolver: Support restart by caching state in the uniform directory
sixDoFRigidBodyMotionSolver: use point-edge rather than face-cell wave to calculate point distance to surface.

Added sixDoFRigidBodyMotionSolver using septernion interpolation for mesh-morphing

This reverts commit c5bea524.

This reverts commit b18f6cc1.

eg,
    - makePatchTypeField -> makeTemplatePatchTypeField
    - makeNonTemplatedPatchTypeField -> makePatchTypeField

reporting.

Making sixDoFRigidBodyMotionConstraints less verbose by default, now
requires debug switch to be set.

not available from db.

Removing rhoInf from uncoupledSixDoF... patch, not needed.  Adding
optional rhoName entry to sixDoF... so no rhoInf entry is needed for
simulations that have a rho field, and require than a rhoInf value is
read for those that don't.

initialOrientation.

Rename of IO to more understandable terms.  Rename ref to initial
where correct - ref is to do with the object being in Q = I state,
inital is to do with where things are when the motion starts and
pointDisplacement and value are zero.

Adding initialOrientation so that non Q = I initial states are
correct.

Applying restraints, which return the force and moment to be applied
to the attachment point.

Adding linearSpring with along axis damping.

Making access functions for the sixDoFRigidBodyMotion data private
where possible to prevent erroneous external use of body local data.

Fixing bug in unused updateForce(pointField...) function, torques were
not being correctly applied.

Adding gravity lookup to uncoupledSixDoFRigidBodyDisplacement BC to
allow it to be used in, for example, moveDynamicMesh (which would need
read gravity into the database).

restraints and constraints.

Moving sixDoFRigidBodyMotion back one directory.

Adding uncoupledSixDoFRigidBodyDisplacement to execute motion
specified by the six DoF motion state, but not applying surface
forces.  Useful for pre-displacing a mesh.

Adding constrainedSixDoFRigidBodyDisplacement to temporarily perform
Vorticity's lander simulation.  Will be removed when generalised
constraints are added.

dependency on the libforces.so and the libraries it requires.

fvMotionSolver/pointPatchFields

    deltaT().value() to deltaTValue()
and
    deltaT0().value() to deltaT0Value()
across the whole code - faster to return especially if being used
often, in each call to a submodel for example.

sepatate class so that it may be scattered in one operation.