Improve bilevel particle advection
Opencl advection kernel modification for bilevel high order interpolation (commits 0e7efc09 and 78460030) was not fully correct and performant. These commits was inverted in the mpi-operator branch by commit 3a2d689d
TODO :
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Implement a not full line cache for velocity bilinear interpolation (bilevel) -
Implement a higher order interpolation for velocity in a separate operator -
Add support for resolution larger than max dimension of a thread block.
Edited by EXT Jean-Matthieu Etancelin