BUG-509: improve normalization error reporting
This patch introduces an explicit checked exception for reporting
normalization errors, declares it at strategic places and makes use of
it for generating better error reports than:
Caused by: java.lang.IllegalArgumentException: Supplied QName (urn:opendaylight:params:xml:ns:yang:pcep:crabbe:initiated:00?revision=2014-01-13)initiation is not valid according to schema container stateful
Change-Id: I2020c9e6ef85035259558a32f141a132b6321e0e
Signed-off-by: Robert Varga <rovarga@cisco.com>