Prefix library attributes

[hvisser]

Because android attributes are shared in a common namespace, it's a good habit to prefix attributes like aspectRatio in order to prevent conflicts with other libraries that a project may use.

I'd suggest prefixing the attributes this library adds with cam or cv for example so that app:aspectRatio would become app:camAspectRatio or app:cvAspectRatio.

[chrisbanes]

Because android attributes are currently shared in a common namespace

We should leave this as-is, its a Tools problem and is being fixed from there.

[hvisser]

I'm not sure how far we are from aapt2 being a thing, but I can live with that :) Filed this mainly on my experience with other libs that had clashing attributes, which is a painful experience, so I'll close this then.