Add some tests to verify that when creating or importing keys,
the usage flags PSA_KEY_USAGE_SIGN_HASH/PSA_KEY_USAGE_VERIFY_HASH
automatically set the usage flags PSA_KEY_USAGE_SIGN_MESSAGE/
PSA_KEY_USAGE_VERIFY_MESSAGE on the key.
Signed-off-by: Armin Wolf <W_Armin@gmx.de>