Add OWNERS.md file with current maintainers

Signed-off-by: Jared Watts <[email protected]>

OWNERS.md

@@ -0,0 +1,17 @@
+# OWNERS
+
+This page lists all maintainers for **this** repository. Each repository in the
+[Crossplane organization](https://github.com/crossplane/) will list their
+repository maintainers in their own `OWNERS.md` file.
+
+Please see the Crossplane
+[GOVERNANCE.md](https://github.com/crossplane/crossplane/blob/master/GOVERNANCE.md)
+for governance guidelines and responsibilities for the steering committee and
+maintainers.
+
+## Maintainers
+
+* Hasan Turken <[email protected]> ([turkenh](https://github.com/turkenh))
+* Lovro Sviben <[email protected]> ([lsviben](https://github.com/lsviben)) 
+* Erhan Cagirici <[email protected]>
+  ([erhancagirici](https://github.com/erhancagirici))