Add additional files to devcontainer

.devcontainer/.gitignore

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+data/

.devcontainer/config.inc.php.example

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+<?
+/* 
+   This file is part of the 'Science Fair In A Box' project
+   SFIAB Website: http://www.sfiab.ca
+
+   Copyright (C) 2005 Sci-Tech Ontario Inc <info@scitechontario.org>
+   Copyright (C) 2005 James Grant <james@lightbox.org>
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public
+   License as published by the Free Software Foundation, version 2.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; see the file COPYING.  If not, write to
+   the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.
+*/
+?>
+<?
+$DBHOST=		"db";
+$DBNAME=		"mariadb";
+$DBUSER=		"mariadb";
+$DBPASS=		"mariadb";
+?>