Added Images

Added images for the test products and fixed an error in the database
where there was an incorrect space in the file name for an image.
Updated getProductInfo

Updated getProductInfo.php and moved it to the lib folder.
Moved buildMainHtml

Moved buildMainHtml.php and the css stylesheet and updated the
stylesheet for the product pages
Added Product Pages

Added a product page and a products list page which shows all products.