Buy Pro License

[WunderJacob]

Goals:

• [x] Possibility to buy auto gen license, and send via mail

Subgoals:

• [x] Possibility to add and validate url and email before booking customform
• [x] New booking actions: generate pro license after buy (url to script, send customform params as post)
• [x] 3 Checkboxen; take params from customform; take credientials from admin settings; take user information

Next Steps:

• [x] Read values during after booking action execution 
• [x] Call script curl call; post values;
• [x] save response (license key);
• [x] trigger license gen event;
• [x] Booking rule; react on license and send mail

For shopping cart

• [x] UID checker

Production

• [ ] Test buy with Austrian user, check invoice: correct VAT, correct Address, license correctly sent, invoice correct sent?
• [ ] Test buy with German user, check invoice: correct VAT, correct Address, license correctly sent, invoice correct sent?
• [ ] Test buy with out of EU user, check invoice: correct VAT, correct Address, license correctly sent, invoice correct sent?
• [ ] Test buy with Austrian business user, check invoice: correct VAT, correct Address, license correctly sent, invoice correct sent?
• [ ] Test buy with German business user, check invoice: correct VAT, correct Address, license correctly sent, invoice correct sent?
• [ ] Test buy with out of EU business user, check invoice: correct VAT, correct Address, license correctly sent, invoice correct sent?