Preview export for saved connections

[beddet]

Create an export function for either one or all (selected) saved connections.

This should create an export of the selected connection.

It should contain the following.

• Connection info
  • Connectionstring
  • Name
  • IsProduction (when that has been added)
• Tables
  • Table name
  • Number of messages

If message type grouping has been added, maybe add this data to the file as well (maybe as an optional).

The result should be a csv file the user can save (using normal windows save file dialog).