Add test for AWS 2 SNS

[orpiske]

Adding an issue for me. I already have it ready and can merge once we move to 3.7.

[orpiske]

Done.

[oscerd]

@orpiske if this stuff is done for 0.8.0, add also the milestone 0.8.0, so they will appear in the camel release page :-) Thanks!

[orpiske]

Ahhhh, cool. I think I have to add it to a few others, thanks @oscerd