[TASK] Create functional test databases with UTF8 character set/collation

Change the create database statements in the functional test setup to
ensure an UTF-8 character set and collation. Otherwise the tests use the
default collation of the server which could lead to database being
created with Non-UTF-8 character sets like latin1_swedish_ci which is
widely in use as a default character set.

Resolves: #67474
Releases: master
Change-Id: Iefdb686a7ceb23e7934702904d16e7d44ae88839
Reviewed-on: https://review.typo3.org/45368


Reviewed-by: Richard Haeser <richardhaeser@gmail.com>
Reviewed-by: Tymoteusz Motylewski <t.motylewski@gmail.com>
Tested-by: Tymoteusz Motylewski <t.motylewski@gmail.com>
Reviewed-by: Daniel Goerz <ervaude@gmail.com>
Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Reviewed-by: Frank Nägler <frank.naegler@typo3.org>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>