[nlio] Add OWNERS file

Add as owners the owners of the code that calls into this dependency.

The OWNERS file is generated by `fx update-3p-owners`.

Bug: 102810
Change-Id: I28f312b0697e7f9145e1f8989b8ae6d81d232fdd
diff --git a/OWNERS b/OWNERS
new file mode 100644
index 0000000..ac426ea
--- /dev/null
+++ b/OWNERS
@@ -0,0 +1,5 @@
+# AUTOGENERATED FROM DEPENDENT BUILD TARGETS.
+# TO MAKE CHANGES HERE, UPDATE //third_party/owners.toml.
+# DOCS: https://fuchsia.dev/reference/tools/fx/cmd/update-3p-owners
+
+include /third_party/openweave-core/OWNERS