Add new `mdc-bottom-app-bar` component

[sfdexter]

https://material.io/go/design-app-bar-bottom

[touficbatache]

Hello!

I'm making a bottom app bar for a project I'm working on and this is what I came up with based on the Material specs:

FAB Center: http://jsfiddle.net/Toufic/czpb8u0f/4/
FAB Center cut: http://jsfiddle.net/Toufic/czpb8u0f/5/
FAB End: http://jsfiddle.net/Toufic/czpb8u0f/9/
No FAB: http://jsfiddle.net/Toufic/czpb8u0f/8/

I thought it might be helpful for the future creation of this component.
Hope it helps!

[SampsonCrowley]

Has there been any progress on this? or is there an easy way to convert the mdc-top-app-bar to align to the bottom?

It's mind blowing to me that there is absolutely no support for footers in MD Web. has really no one needed a sticky footer, for Privacy permission bars for instance?

[MatteuSan]

Hello? Is there a chance someone is working on this? If not mind if I take a crack on this component?