Update fan inventory method

Use the methods provided within sdbusplus.hpp to update fan inventory
along with prepping inventory to be updated for each fan rotor sensor's
functional state.

Change-Id: I7d3026d289b1dd22cd4e7b4457c4d4396309c0b5
Signed-off-by: Matthew Barth <msbarth@us.ibm.com>
4 files changed