Add Presta version info

[LocalHeroPro]

Please add Presta version info.
For example 1.7.6.7.
I think its mandatory information ;]

[AngelJEM9213]

How do I correct this issue #15

[Klemart3D]

I improved the script by detecting the current PrestaShop version of the shop and displays related PHP versions :

https://github.com/Klemart3D/phppsinfo/blob/dynamic-ps-version/phppsinfo.php