Add Salesforce Platform field formatting utilities

[interactivellama]

Salesforce Platform has components that do not exist in SLDS, but do define the micro-UX/design of Salesforce applications.

Here are the ones I'm aware of

https://developer.salesforce.com/docs/component-library/bundle/lightning:formattedAddress/example
https://developer.salesforce.com/docs/component-library/bundle/lightning:formattedDateTime/example
https://developer.salesforce.com/docs/component-library/bundle/lightning:formattedEmail/example
https://developer.salesforce.com/docs/component-library/bundle/lightning:formattedLocation/example
https://developer.salesforce.com/docs/component-library/bundle/lightning:formattedName/example
https://developer.salesforce.com/docs/component-library/bundle/lightning:formattedNumber/example
https://developer.salesforce.com/docs/component-library/bundle/lightning:formattedPhone/example
https://developer.salesforce.com/docs/component-library/bundle/lightning:formattedRichText/example
https://developer.salesforce.com/docs/component-library/bundle/lightning:formattedText/example
https://developer.salesforce.com/docs/component-library/bundle/lightning:formattedTime/documentation
https://developer.salesforce.com/docs/component-library/bundle/lightning:formattedUrl/example

These utilities would return React nodes, and therefore could not be used within inputs, but this makes since if you review the View/Edit InputUX pattern. #1373

"View inputs" are formatted HTML, to edit them, break out or normalize the "the fields" (address becomes street, city, zip, etc.) and put them in a modal or popover.

Would these utilities for helpful to anyone? I'm a little unsure about how to handle internationalization.

[interactivellama]

@kwilloughby-sf I've been little slow on the uptake. This explains the existence of the View/Edit input UX patterns. View mode is rich text with links and formatting. Edit mode is normalized fields separated into "database friendly" data.