tree de72c6c55a3e29bf2da5d6c20283be11c5c55cdd
parent 677143bb9a12a41350945a5314d60f7a5483b0a2
author Matt Spinler <spinler@us.ibm.com> 1527091215 -0500
committer Matt Spinler <spinler@us.ibm.com> 1527878179 -0500

Add Callout class

This class will be used to put a hardware callout object
on D-Bus that shows the serial number and part number information
for what is being called out in an error log.

It will remain even after that part is replaced with a new part with
a new SN, so the data needs to be persisted as opposed to being
looked up in the inventory on startup.  The persisting will be
done in a future commit.  Note it will also survive an error log
being resolved, which would delete the inventory assocation interface
on the error log.

The object path of the callout objects will look something like
/xyz/openbmc_project/logging/entry/5/callouts/0, where this would be
the first callout on error log 5.

Tested: N/A - not used yet

Change-Id: I7e2f0c61705880ad70d5f6a49209f73a499785b9
Signed-off-by: Matt Spinler <spinler@us.ibm.com>