* Tests: Speed up AutoType testing
Decrease default autotype delay to 1 to improve test suite speed by
seconds. This shaves multiple seconds off the whole test suite. In some
cases, the largest part.
Also, initialize config just creating the test instance, just in case
that it ever depends on the configuration values at that point already.
* Tests: Speed up Kdbx4 testing
This speeds up the Kdbx4 tests by using parameters optimized for speed
for the key derivation functions. On an i7-6700K the tests run close to
50% faster with this change (about 1.5s vs. 3s).
