feat: HTML structure redesigned.

#48

refactor: workaround damit mir das ding nicht um die ohren fliegt. (bleibt so bis michael das ganze behoben hat)

feat: Login and register site type works.

feat: Currency Lang Switch reworked. Do not show arrow if there are nothing to switch (neither language nor currency)

refactor: Many small changes.
fix: Search on product search site works.

feat: Clear filter button styled.

refactor: Class documentation changed.

feat: Payments control added.

feat: Many others shop category menu improvements.

feat: New template settings (show / hide shop categories menu).

#10

#11

feat: user currency -> the user can now have his own currency, so he can use the exchange rate to display the price in his currency.

feat: New controL --> Lang Currency Switch.

feat: User profile menu -> show user avatar and short info in mobile.

refactor: Badge orders number styling.
lang: Translations for badge orders number tooltip.

feat: QUIQQER Tooltip integrated. SimpleUserInfo use it from now to show explanation for orders number.