Enable using AWS services with ec2role

[mesutgungor]

Normally in Shuffle AWS apps needs credentials to be used.
If you give a necessary permissions(list bucket, create waf block ip etc.) with an ec2role to the server that Shuffle installed then you don't need to enter credentials in the app.
I put a small check for this in the code and change the requirements in the api.yaml

[frikky]

@dhaval055 can you have a look at this? It's a possibly breaking change to a lot of existing apps, so I think we should bump all relevant apps to at least 1.1.0.

It looks really nice @mesutgungor - thanks 🔥 Hope it works :)

[frikky]

@dhaval055 tagged wrong dhaval.. oops :D

[mesutgungor]

I have tested locally everything seems working @frikky, happy to contribute.