Nonkube sites enhancement to use namespaces

[fgiorgetti]

• Using namespaces to isolate sites
• Container names are now prefixed with namespace name
• Systemd services are now prefixed with namespace name
• Bootstrap README file updated (cmd/bootstrap/README.md)
• Bootstrap can now re-initialize a given namespace
• Bootstrap now accepts bundle strategy flag (or SKUPPER_BUNDLE env variable)
• Bundle and Tarball strategies are no longer valid SKUPPER_PLATFORM values
• Bundles can be installed to different and multiple namespaces
• Bootstrap binary and script now use similar flags
• Router names now have a dynamic suffix
• Static status is now added to processed CRs
• Installation summary is clearer now

[fgiorgetti]

@c-kruse I have addressed the initial feedback.
Let me know if your thoughts.

[ajssmith]

Built bootstrap locally, ran redis example in myriad ways:

• w/wo namespace
• bundle types
• removal
• re-init
  LGTM

[c-kruse]

Very nice @fgiorgetti! Thank you!