Feature: support for cd pipelines bulk deletion

[kartik-579]

🔖 Feature description

Users today can only delete cd pipelines one at a time. To add support for pipeline deletion on bulk basis.

🎤 Pitch

User should be able to delete pipeline by giving appIds and projectIds and envIds. All pipelines satisfying these conditions must be deleted together.

✌️ Solution

User will give environmentIds, appIds and projectIds. All pipelines lying in the boundary of [environmentIds && appIds] && [environmentIds && projectIds] should be deleted together.

🔄️ Alternative

NA

👀 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#992