HHH-9471 corrected OSGi test client bundle manifest, improved arquillian/felix logging setup
HHH-8401 : Unit test fixes

(cherry picked from commit 45511f10ae58e9460fd09e6da5c33b1332494cbf)
HHH-9500: H2Dialect shoud not drop constraints

The constraints are automatically dropped when the table is also dropped.
Trying to drop a constraint on a table that doesn't exist present unnecessary error messages.