Add organization delete command (#270)

Added organization delete command.

Fix #269

Signed-off-by: Karl Heinz Marbaise <kama@soebes.de>

Supplemental check for response.

Co-authored-by: Karl Heinz Marbaise <kama@soebes.de>
Reviewed-on: https://gitea.com/gitea/tea/pulls/270
Reviewed-by: Norwin <noerw@noreply.gitea.io>
Reviewed-by: 6543 <6543@obermui.de>
Co-Authored-By: khmarbaise <khmarbaise@noreply.gitea.io>
Co-Committed-By: khmarbaise <khmarbaise@noreply.gitea.io>

cmd/organizations.go

@@ -22,6 +22,7 @@ var CmdOrgs = cli.Command{
 	Action:      runOrganizations,
 	Subcommands: []*cli.Command{
 		&organizations.CmdOrganizationList,
+		&organizations.CmdOrganizationDelete,
 	},
 }