first pass working EAVL isofilter
fix typo in header, include cuda with eavl if possible
add multi-isovalue version
add library path for eavl/cuda compilation
add global preference to set backend type to VTK, EAVL, DAX, or PISTON
add missing files
add some basic timings to contour filter and eavl-to-vtk conversion
add missing include
fix build without eavl
catch eavl exceptions when trying to execute eavlIsoFilter
propagate GetBackendType change to SIMODataTreeIterator
only look for cuda if eavl was found, add debug txt to BackendRPC execute
propagate ExecuteDataTree change down to children of avtSIMODataTreeIterator, fixing global VTK/EAVL setting
add more timings for eavl
rename a function, add code to convert using a file (not necessary, was just for debugging)
disable parts that force VTK functions to be called in order to test multi-filter EAVL pipelines
finish callback for get/set backend type
add openmp
add automatic conversion to from zonal to nodal and some timings
use gpu/cpu hybrid with eavl