Update firstboot.sh

updates to main page, ceph operator

updates to main page, ceph operator

updates to main page, ceph operator

Additional README.md updates

UPDATES:

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- Consolidated kickstarts into one version that supports virtual and cisco systems
- Extended the pre-select.ks prompts to prompt for more details (working toward being hardware agnostic)
- ISO/USB now supports both UEFI and BIOS builds

TODO:
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- remove references to "virtual" in all kickstarts, folders, paths.
- integrate ingress into deployment