tpm_manager: Initial commit Initial commit for TpmManager. This CL defines the daemon tpm_managerd and command line client tpm_manager_client as part of the TpmManager BUG=brillo:1038 TEST=unit and tpm_manager_client --status on DUT Change-Id: Icc9eecb76f14e9e3298a2d66cc1bc71ccce91ffb Reviewed-on: https://chromium-review.googlesource.com/272216 Reviewed-by: Utkarsh Sanghi <[email protected]> Commit-Queue: Utkarsh Sanghi <[email protected]> Tested-by: Utkarsh Sanghi <[email protected]>