Resolve "Add ESO Charts to BB main repo"

Package Merge Request

Package Changes

Adding the following files for external secrets

• git-credentials.yaml
• gitrepository.yaml
• helmrelease.yaml
• imagepullsecret.yaml
• namespace.yaml
• values.yaml

Package MR

For Issue

Closes #2121 (closed)

Upgrade Notices

Adds External Secret Operator to the big bang umbrella

Closes #2121 (closed)