Merge pull request #1 from denis-mentey/master

PA1 test reference fixes
Additional hex literal tests
Merge pull request #2 from vargad/master

Additional hex/oct char literal tests
added link to reason about a test
test adjusted to follow 17.6.4.3.1 sub 2 restriction
Merge branch 'master' of github.com:danilchap/cppgm.tests
Added universal character to not-raw-string

The universal character name must be decoded on this tests (while on
real raw strings it should remain as it is)..
Merge pull request #4 from Andrepuel/master

Added universal character to not-raw-string test