Add ccache stats.
Add ccache stats.

karies/cling,root-mirror/cling,marsupial/cling,karies/cling,root-mirror/cling,karies/cling,karies/cling,root-mirror/cling,marsupial/cling,root-mirror/cling,root-mirror/cling,marsupial/cling,karies/cling,karies/cling,marsupial/cling,marsupial/cling,marsupial/cling,root-mirror/cling