Export AllPermissions slice for baking super macaroon in Lightning Terminal

Export AllPermissions slice so that we can retrieve the permissions
required to run Loop's operations. We need these permissions in
Lightning Terminal in order to bake a super macaroon that allows
access to Loop.

loopd/macaroons.go

@@ -105,11 +105,11 @@ var (
 		}},
 	}
 
-	// allPermissions is the list of all existing permissions that exist
+	// AllPermissions is the list of all existing permissions that exist
 	// for loopd's RPC. The default macaroon that is created on startup
 	// contains all these permissions and is therefore equivalent to lnd's
 	// admin.macaroon but for loop.
-	allPermissions = []bakery.Op{{
+	AllPermissions = []bakery.Op{{
 		Entity: "loop",
 		Action: "out",
 	}, {
@@ -195,9 +195,9 @@ func (d *Daemon) startMacaroonService() error {
 		// existing permissions (equivalent to the admin.macaroon in
 		// lnd). Custom macaroons can be created through the bakery
 		// RPC. Add our debug permissions if required.
-		allPermissions = append(allPermissions, debugPermissions...)
+		AllPermissions = append(AllPermissions, debugPermissions...)
 		loopMac, err := d.macaroonService.Oven.NewMacaroon(
-			idCtx, bakery.LatestVersion, nil, allPermissions...,
+			idCtx, bakery.LatestVersion, nil, AllPermissions...,
 		)
 		if err != nil {
 			return err