regenerate-meson: enable meson formatting

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I5bc2c84cf2ebb3a8d64c96bf3c02e4f34d1f28dd

Add new interface to define sensor purpose

A chassis can have a sensor which tracks the total power consumption.
Clients such as bmcweb need a programmatic approach to finding the
unique sensor from

Add new interface to define sensor purpose

A chassis can have a sensor which tracks the total power consumption.
Clients such as bmcweb need a programmatic approach to finding the
unique sensor from the chassis.

A design discussion [1] in development channel of Discord settled on the
following approach:
- Define a D-Bus interface for defining a special purpose for a
sensor.
- Use the existing all_sensors/chassis association to connect the
sensor to its Chassis.
- Clients such as bmcweb use object mapper to find all_sensors
associated with the Chassis. They then filter to
find the sensor implementing the specific purpose required.

This initial implementation only defines a single special purpose. The
expectation is others will be added as needed in the future.

The openpower-occ-control repo implemented a total_power association.[2]
This will be modified to implement this new interface on the total_power
sensor.

There is a commit for bmcweb which will be modified to use this new
approach for finding the total_power sensor.[3]

Note: There is technical debt to convert all_sensors/chassis
associations to use the monitoring/monitored_by association instead.[4]
That change would also need to convert the association used to find
objects implementing this interface.

[1] https://discord.com/channels/775381525260664832/867820390406422538/1326612654852280433
[2] https://gerrit.openbmc.org/c/openbmc/openpower-occ-control/+/75572
[3] https://gerrit.openbmc.org/c/openbmc/bmcweb/+/57717
[4] https://discord.com/channels/775381525260664832/867820390406422538/1326609419022372916

Change-Id: Ic8b509c9b2b17e823243f7b784ef941ec461cddb
Signed-off-by: Janet Adkins <janeta@us.ibm.com>

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