Add a finite volume method for ScalarEq
Proof of principle.
Introduced a (suboptimal) extra FVElement
type and added another type parameter to Mesh
.
Added a ref test for the advection eq with periodic sine wave.
This PR also did some refactoring of the ScalarEq project:
- remove all occurrences of the old broadcast methods (now using
broadcast_*_2!
or newer) - introduced some abstractions for
Mesh
to compactify time step computation
So far only 1d is implemented!