[1314] initial addition of config and database

tests/lettuce/configurations/ixfr-out/testset1-config.db

@@ -0,0 +1 @@
+{"Xfrin": {"zones": [{"use_ixfr": true, "master_addr": "178.18.82.80", "class": "IN", "name": "example.com."}]}, "version": 2, "Logging": {"loggers": [{"severity": "DEBUG", "name": "*", "output_options": [{"output": "stderr", "flush": true}], "debuglevel": 99}]}, "Auth": {"database_file": "data/ixfr-out/zones.slite3", "listen_on": [{"port": 47806, "address": "::"}, {"port": 47806, "address": "0.0.0.0"}]}}