Incorporate RH icons into PF library

[andrew-ronaldson]

##Goal
Describe the purpose and impact of this work

##References
Do you have research to support this initiative?

##Resourcing information

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Jira Issue: PF-1691

[mcoker]

@andrew-ronaldson is this closed by patternfly/patternfly-react#12143?

[patternfly-jira-sync]

Closed via Jira sync - Jira issue PF-1691 was closed.