Interpolator: use TwoD arrays in the interpolator

See merge request !783

Fix FilterFieldConvert for Hdf5 output

Closes #53

See merge request !781

instead of allocating millions of OneD Arrays which causes extreme memory
overhead and is slower

Fixed an error where the auxiliary field was not initialised in the Incompressible flow solver

See merge request !779

Fixed an error where the auxiliary field was not initialised in the Incompressible NavierStokes solver. Added a regression test so that an auxiliary field is used

Fix/averagefield var p

See merge request !776

Reverted the tests back to use a previous .rst file with provenance now included so that I do not have to modify the results of other tests using this file

Added in regression tests which reads in filter file. Also corrected mistake in index in FilterFieldConvert

Put in a check for when m_variables has a larger set of variables than pField in the restart routine

Tolerance required a tweak. Not sure this was related to the updates in this branch since some of my other branches gave the same result

Fix issue with older rea input files in 2D

See merge request !765

fix lapack dependencies

See merge request !763

Fix/rm_getoffsetelmtid

See merge request !758

Fix issue with file boundary condition interpolation

See merge request !768

Add regression test, modify to test for modified -> Lagrange conversion and Lagrange -> Lagrange conversion at different orders

Feature/sum fac pyr

See merge request !750