add ownerName to backup list json (#3481)

#### Does this PR need a docs update or release note?

- [x] ✅ Yes, it's included

#### Type of change

- [x] 🌻 Feature

#### Issue(s)

* #3748

#### Test Plan

- [x] 💪 Manual
- [x] ⚡ Unit test

CHANGELOG.md

@@ -8,6 +8,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased] (beta)
 
 ### Added
+- Added OwnerName to the backup list json output.  OwnerName holds either a UPN or a WebURL, depending on the resource type.
+
 ### Fixed
 - Fix Exchange folder cache population error when parent folder isn't found.
 - Fix Exchange backup issue caused by incorrect json serialization

src/pkg/backup/backup.go

@@ -171,6 +171,7 @@ type Printable struct {
 	Status    string         `json:"status"`
 	Version   string         `json:"version"`
 	Owner     string         `json:"owner"`
+	OwnerName string         `json:"ownerName"`
 	Stats     backupStats    `json:"stats"`
 }
 
@@ -181,6 +182,7 @@ func (b Backup) ToPrintable() Printable {
 		Status:    b.Status,
 		Version:   "0",
 		Owner:     b.Selector.DiscreteOwner,
+		OwnerName: b.Selector.DiscreteOwnerName,
 		Stats:     b.toStats(),
 	}
 }