move testing-related files to test submodule

create scripts to load and dump the test database to and from SQL files

slopserver/test/create_test_db.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+test_dir=slopserver/test
+
+cat $test_dir/test_db.sql | sqlite3 $test_dir/test_db.sqlite