First runnable tests for Database / Commented out Good/BadCasesTests (not relevant to this branch)

src/main/java/hhn/temp/project/provider/Database.java

@@ -1,5 +1,7 @@
 package hhn.temp.project.provider;
 
+import java.sql.SQLException;
+
 public interface Database {
-  public boolean connect();
+  public void connect() throws SQLException;
 }