Add lib to help IPC between components, including SOS lifecycle service,
acrn manager and devicemodule.
Following helper functions are included:
int mngr_open_un() - create a descripter for vm management IPC
void mngr_close() - close descripter and release the resouces
int mngr_add_handler() - add a handler for message specified by msg
int mngr_send_msg() - send a message and wait for ack
Reviewed-by: Kaige Fu <kaige.fu@intel.com>
Reviewed-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Wang, Yu <yu1.wang@intel.com>
Sigbed-off-by: Yan Like <like.yan@intel.com>
Signed-off-by: Tao Yuhong <yuhong.tao@intel.com>
