tests added for About.js and AppBar.js

[Sky-De]

This is a starting point to fix the issue #24

[gbowne1]

@Sky-De

Thanks for the PR. This is great but this has the old App.js.. The App.js got updated today in a earlier PR. Fix the conflicts with App.js and recommit.

[Sky-De]

@Sky-De

Thanks for the PR. This is great but this has the old App.js.. The App.js got updated today in a earlier PR. Fix the conflicts with App.js and recommit.

@gbowne1 it is done by second commit

[Sky-De]

@gbowne1Hi, if you are satisfied with the pre-tests, I can test other components as well. inform me please, thanks

[gbowne1]

@Sky-De

Please feel free to continue making tests. The ones you made work pretty well so far.