feat(About): add ability to use product title image

[jeff-phillips-18]

What:
Adds the ability to pass an image (or other node) for the product title in the about modal.

Link to Storybook:
https://jeff-phillips-18.github.io/patternfly-react/

Additional issues:
Fixes #197

[serenamarie125]

@jeff-phillips-18 this looks good. Now there is a choice to either use text or an SVG right?

[sharvit]

I think it can be as simple as:

productTitle: PropTypes.node,

Since node can be a string.

[jeff-phillips-18]

Thanks. Updated.

[cdcabrera]

And of course I didn't catch this until now... Thinking the commit needs to be amended to fix(About) ... or something related to enhancement

[priley86]

+1... for fix() ... and happy to see it merge after...

[priley86]

validated in my semantic-release playground that fix() and perf() do a patch level release, and that refactor() and revert() does no release. feat() will do a minor release.

[cdcabrera]

@priley86 @jeff-phillips-18

For the most part we tend to keep our use of semantic release types limited. Going to go ahead and look like I'm flip-flopping, and merge this in.

There is a bit of subjective to these, and this is one of those in-between updates that's kind of enhancing the existing component and not breaking previous behavior. Where fix seems like an odd choice, since the component isn't actually broken. For future reference, based on the Commitizen types, per @priley86 perf and, of course, fix appear to increment as patches.