Rename apps to sciapps in test library

Author: Vasileios Karakasis

cscs-checks/apps/amber/amber_check.py

@@ -5,7 +5,7 @@
 
 import contextlib
 import reframe as rfm
-from hpctestlib.apps.amber.nve import amber_nve_check
+from hpctestlib.sciapps.amber.nve import amber_nve_check
 
 
 @rfm.simple_test

cscs-checks/apps/jupyter/check_ipcmagic.py

@@ -5,7 +5,7 @@
 
 import reframe as rfm
 
-from hpctestlib.apps.jupyter.ipcmagic import ipcmagic_check
+from hpctestlib.sciapps.jupyter.ipcmagic import ipcmagic_check
 
 
 @rfm.simple_test