CreateImageWizard: update azure text and field order

The info text is updated and the authorize button is moved below tenant
ID. The tenant ID is now validated as a valid GUID and if is not valid
the authorize button is disabled. This tenant id is now used to validate
image builder on azure because the authorize url containing the tenant
id will authorize for any microsoft account type. Tests are also
updated.

src/test/Components/ImagesTable/ImagesTable.test.js

@@ -243,7 +243,7 @@ const store = {
                             upload_request: {
                                 type: 'azure',
                                 options: {
-                                    tenant_id: 'test-tenant-id',
+                                    tenant_id: 'b8f86d22-4371-46ce-95e7-65c415f3b1e2',
                                     subscription_id: 'test-subscription-id',
                                     resource_group: 'test-resource-group'
                                 }