iam: Allow creating Compute/Disk offering as Domain admin (#446)

Currently only "ROOT" admin can create compute and
disk offering. If we login as domain admin then we
cant create a compute and disk offering as domain
id's is not passed to the api. If we login as
domain admin we need to set "isPublic" to false
so that domain id list will be displayed

Co-authored-by: Rakesh Venkatesh <r.venkatesh@global.leaseweb.com>
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>

ui/src/views/offering/AddComputeOffering.vue

@@ -595,6 +595,7 @@ export default {
       this.isSystem = true
     }
     this.fetchData()
+    this.isPublic = this.isAdmin()
   },
   methods: {
     fetchData () {

ui/src/views/offering/AddDiskOffering.vue

@@ -348,6 +348,7 @@ export default {
   },
   mounted () {
     this.fetchData()
+    this.isPublic = this.isAdmin()
   },
   methods: {
     fetchData () {