VirtualMedia dbus interface definition.

This interfaces definition was created on base of the VirtualMedia
design proposed in this document:
	https://github.com/openbmc/docs/blob/master/designs/VirtualMedia.md

It also takes into account the design changes proposed in this review:
	https://gerrit.openbmc-project.xyz/c/openbmc/docs/+/29573

Signed-off-by: Zbigniew Kurzynski <zbigniew.kurzynski@intel.com>
Change-Id: Ie5b1cdb9a8e01a54e79784837edf3b1d1f1fb017
diff --git a/xyz/openbmc_project/VirtualMedia/Stats.interface.yaml b/xyz/openbmc_project/VirtualMedia/Stats.interface.yaml
new file mode 100644
index 0000000..9895b06
--- /dev/null
+++ b/xyz/openbmc_project/VirtualMedia/Stats.interface.yaml
@@ -0,0 +1,19 @@
+description: >
+    Provides statistic information about object.
+
+properties:
+    - name: ReadIO
+      type: uint64
+      description: Number of read IOs since image mounting.
+      flags:
+        - const
+      errors:
+          - xyz.openbmc_project.Common.Error.InternalFailure
+
+    - name: WriteIO
+      type: uint64
+      description: Number of write IOs since image mounting.
+      flags:
+        - const
+      errors:
+          - xyz.openbmc_project.Common.Error.InternalFailure
\ No newline at end of file