Add recurse submodules arg to bootstrap cmd

Signed-off-by: Stefan Prodan <stefan.prodan@gmail.com>

pkg/manifestgen/sync/options.go

@@ -30,6 +30,7 @@ type Options struct {
 	TargetPath        string
 	ManifestFile      string
 	GitImplementation string
+	RecurseSubmodules bool
 }
 
 func MakeDefaultOptions() Options {