replaced some functions in container.py with their new blockdevice.py counterparts
move "type_id" detection from container.py to blockdevice.py
reduce calls of "reset" for blockdevices
added UUID detection for blockdevices
changed interface of cryptobox.core.container and cryptobox.core.main for new blockdevice detection
* beware: the change is not finished - the cryptobox is not working properly for now
added allowedProg "pvdisplay" to CryptoBoxRootActions to allow LVM detection
improved blockdevice handling: caching and detection of lvm, luks and raid