Adds proxy configuration support and remediates helm auto admin password generation

• Adds ability to configure proxy during install/upgrade.
• Adds "helm.sh/hook-delete-policy" to clean jobs
• Adds post-upgrade to "helm.sh/hook"
• Fixes admin.password generation; upgrades should no longer recreate the secret.

Added mention to README.md regarding adding the password to -secret if a user decides to change in the UI. We may workaround this in a future iteration.

Leaving source branch-as we have references to this branch that will need to be updated.