Add OWNERS for VTS module VtsHalNeuralnetworksV1_3TargetTest

Each VTS module is required to have OWNERS file. The ownership is based on
go/vts-owners. For more information about ownership policy, please visit
go/xts-owners-policy.

Test: Tree Hugger
Bug: 143903671
Change-Id: Ia91342cef75e7dabd417db557c64fdb46ae4e67e