core: ImportVmFromConfiguration - modifiers

Added static modifiers where possible to fix an IntelliJ IDEA warning.

Change-Id: I2ea40b538e5f6ac9020a36204a7ce9f7a64e86a8
Signed-off-by: Allon Mureinik <amureini@redhat.com>
core: ImportVmFromConfiguration - @Override

Added missing @Override annotation.

Change-Id: I0dfedd47a8378864762167c401a46524b9968f95
Signed-off-by: Allon Mureinik <amureini@redhat.com>