Please include seat reservation module for my events

## Feature Request **Is your feature request related to a problem? Please describe.** Customer need to checkout for the event and also make a seat reservation. **Describe the alternative solution** This feature will simply workflow and provide better user experience. **Provide mockups and technical documentation** It can look the following way. Users should be able to choose seat directly before checkout: https://www.goocode.net/uploads/posts/2014-11/1416225222_1.png