FEM: package feminterface, move all import and export modules in new package feminterface

src/Mod/Fem/femsolver/calculix/tasks.py

@@ -33,8 +33,8 @@ import os.path
 
 import FreeCAD as App
 import FemUtils
-import importCcxFrdResults
-import importCcxDatResults
+import feminterface.importCcxFrdResults as importCcxFrdResults
+import feminterface.importCcxDatResults as importCcxDatResults
 
 from .. import run
 from .. import settings

src/Mod/Fem/femsolver/z88/tasks.py

@@ -32,7 +32,7 @@ import os.path
 
 import FreeCAD as App
 import FemUtils
-import importZ88O2Results
+import feminterface.importZ88O2Results as importZ88O2Results
 
 from .. import run
 from .. import settings

src/Mod/Fem/femsolver/z88/writer.py

@@ -29,7 +29,7 @@ __url__ = "http://www.freecadweb.org"
 
 import FreeCAD
 import FemMeshTools
-import importZ88Mesh
+import feminterface.importZ88Mesh as importZ88Mesh
 import FemInputWriter