Release Asset Management (#619)

Add release asset management. This includes a series of subcommands under `tea release assets`:

-  `tea release assets create <release-tag> <asset> [<asset>...]`: Upload one or more release attachments
- `tea release assets delete <release tag> <attachment name> [<attachment name>...]`: Delete one or more release attachments
- `tea release assets list <release tag>`: List Release Attachments

Co-authored-by: Dane Bouchie <dbouchie@iradimed.com>
Reviewed-on: https://gitea.com/gitea/tea/pulls/619
Co-authored-by: danebou <danebou@noreply.gitea.com>
Co-committed-by: danebou <danebou@noreply.gitea.com>

cmd/releases.go

@@ -25,6 +25,7 @@ var CmdReleases = cli.Command{
 		&releases.CmdReleaseCreate,
 		&releases.CmdReleaseDelete,
 		&releases.CmdReleaseEdit,
+		&CmdReleaseAttachments,
 	},
 	Flags: flags.AllDefaultFlags,
 }