Adapt ITPA density background to new kinetic init
Solves the following issue(s):
Closes #262 (closed)
Core changes:
-
New perturbation function
ITPA_density
is implemented so thenMaxwellian6DITPA
andMaxwellian5DITPA
are removed. -
Maxwellain5DUniform
is renamed toMaxwellian5D
and fixed to be analogous toMaxwellian6D