Adding submodule for ATS

Signed-off-by: Miguel Angel Reina Ortega <miguelangel.reinaortega@etsi.org>

Adding submodule for ATS
8603986d · Miguel Angel Reina Ortega · ec260942 · 8603986d · e5f11308
Commit 8603986d authored 2 years ago by Miguel Angel Reina Ortega
--- a/.gitmodules
+++ b/.gitmodules
+[submodule "ATS"]
+	path = ATS
+	url = https://git.onem2m.org/TST/ATS.git
--- a/ATS @ e5f11308
+++ b/ATS @ e5f11308
+Subproject commit e5f11308a25e0ae9323c43130430259d0e91125f