Adding small Secc TbdController example

### ISO Version

ISO15118-20

### Describe the problem

Right now only the `Evse15118D20` module in `everest-core` is using the `libiso15118` and `TbdController`.
It would be nice to have a simple example executable using `TbdController` in the test folder

### Describe your solution

Updating `test/iso15118/secc`

### Additional context

_No response_