Tests, FEM: Fix inp file writing test

It's a compare line-by-line without comment lines now instead of
previously used md5 sum comparison.

inp pre filtering method suggested by Far-Zer
File location fixes by wmayer

Signed-off-by: Przemo Firszt <przemo@firszt.eu>

src/Mod/Fem/App/CMakeLists.txt

@@ -75,6 +75,7 @@ SET(FemScripts_SRCS
     FemTools.py
     mesh_points.csv
     mesh_volumes.csv
+    inp_standard.inp
     MechanicalAnalysis.ui
     MechanicalAnalysis.py
     MechanicalMaterial.ui