Stripe plugins for VirtueMart Backported to Joomla 3

Despite the fact Joomla 3 has reached its End of Life, there are still many sites which work on Joomla 3 and VirtueMart due to complex changes in the code which which makes it hard or expensive to migrate the site to the actual Joomla version. We have backported both Stipe payment plugins to run on Joomla 3 and VirtueMart 4.