Add basic PGSQL connection

dub.selections.json

@@ -2,14 +2,22 @@
 	"fileVersion": 1,
 	"versions": {
 		"automem": "0.6.9",
-		"cachetools": "0.4.1",
+		"cachetools": "0.3.1",
+		"d-unit": "0.10.2",
+		"ddbc": "0.6.0",
+		"derelict-pq": "2.2.0",
+		"derelict-util": "2.0.6",
 		"handy-httpd": "8.2.0",
+		"hibernated": "0.4.0",
 		"httparsed": "1.2.1",
+		"mysql-native": "3.1.0",
+		"odbc": "1.0.0",
 		"path-matcher": "1.1.3",
 		"requests": "2.1.3",
 		"slf4d": "3.0.0",
 		"streams": "3.5.0",
 		"test_allocator": "0.3.4",
+		"undead": "1.1.8",
 		"unit-threaded": "0.10.8"
 	}
 }