Panel - Glass related react follow up

[nicolethoen]

• Add isPill modifier to Panel as follow up to Panel - update to support compass panel features patternfly#8055

  • TBD more new modifiers/props

• remove CompassPanel component

• Update existing Compass demos so they don't reference CompassPanel components

• follow up issue required to remove compasspanel components from Org demos

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Jira Issue: PF-3729

[kmcfaul]

story points - 8