Feature: Variables support

[subhashish-devtron]

🔖 Feature description

User can upload and download manifest for creating scoped variables.
Variables are supposed to be used in different entities across Devtron in upcoming releases.
User can start creating and saving variables in the system from UI by going to the scoped variables section in global configuration, which will be exposed only if the flag ENABLE_SCOPED_VARIABLES is set to true, in the dashboard-cm.
On how to create variables, user can download the template which explains how to create a manifest

🎤 Pitch

NA

✌️ Solution

NA

🔄️ Alternative

No response

👀 Have you spent some time to check if this issue has been raised before?

• I checked and didn't find similar issue

🏢 Have you read the Code of Conduct?

• I have read the Code of Conduct

AB#5534