JSON and API prototype to update powerVS VPD

The commit introduces JSON file to hold the VPD that needs to be
updated for systems with PowerVS configuration.

It also adds API to fetch JSON as per s

JSON and API prototype to update powerVS VPD

The commit introduces JSON file to hold the VPD that needs to be
updated for systems with PowerVS configuration.

It also adds API to fetch JSON as per system IM and prototype for API
which will checks the existing data and based on that will either skip
or update the VPD.

Change-Id: I5c279ce210831667be669c2a7c9c7d9c160de336
Signed-off-by: Sunny Srivastava <sunnsr25@in.ibm.com>

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API prototype to process powerVS systems

The commit provides prototype for the API which will be called before
collection status is set to completed. It will check for power VS
configuration and wil

API prototype to process powerVS systems

The commit provides prototype for the API which will be called before
collection status is set to completed. It will check for power VS
configuration and will update the VPD if required.

Change-Id: Ia1d30a58001bd97003de2306d1959c8e734c809a
Signed-off-by: Sunny Srivastava <sunnsr25@in.ibm.com>

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clang-format: update latest spec and reformat

Copy the latest format file from the docs repository and apply.

Change-Id: Id8301a67d945f8a3d1ceb87ae59087100338119c
Signed-off-by: Patrick Williams <p

clang-format: update latest spec and reformat

Copy the latest format file from the docs repository and apply.

Change-Id: Id8301a67d945f8a3d1ceb87ae59087100338119c
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>

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Remove redundant async call in collection threads

This commit removes the redundant std:async call in the detached thread
launched for parsing and publishing the VPD for an individual FRU. Since
we

Remove redundant async call in collection threads

This commit removes the redundant std:async call in the detached thread
launched for parsing and publishing the VPD for an individual FRU. Since
we have a dedicated detached thread for each FRU, we can do VPD parse
and publish in a synchronous manner from the detached thread itself,
instead of launching a asynchronous task which adds unnecessary
performance cost. This commit also handles any exception thrown while
launching the detached thread for a FRU. In case launching detached
thread for a FRU fails, we add the EEPROM path of the FRU to a "failed
EEPROM" list. This list can be handled by Manager later on.

Test:
```
- Install bitbaked image on Everest system.

- Check vpd-manager service status:
root@p10bmc:~# systemctl show vpd-manager -p NRestarts
NRestarts=0

- Check BMC reaches ready state:
root@p10bmc:~# obmcutil state
CurrentBMCState : xyz.openbmc_project.State.BMC.BMCState.Ready
CurrentPowerState : xyz.openbmc_project.State.Chassis.PowerState.On
CurrentHostState : xyz.openbmc_project.State.Host.HostState.Running
BootProgress : xyz.openbmc_project.State.Boot.Progress.
ProgressStages.OSRunning
OperatingSystemState: xyz.openbmc_project.State.OperatingSystem.Status.
OSStatus.Inactive

-Check CollectionStatus property of vpd-manager D-Bus service:
root@p10bmc:~# busctl get-property com.ibm.VPD.Manager /com/ibm/VPD/
Manager com.ibm.VPD.Manager CollectionStatus
s "Completed"

- Check execution time change
Measure the time between vpd-manager event loop start and
CollectionStatus = Completed on a Everest system. Following figures were
measured across 3 reboots:
- On current code, (with the extra async call) it is 61 secs.
- With the changes in this PR, it is 60.33 secs.
```

Change-Id: I86dd9f9f6a4c67b8159e4c90d6ffdb005568cf6b
Signed-off-by: Souvik Roy <souvikroyofficial10@gmail.com>

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Revamped code for VPD parser

The commit removes all the pre-existing code from the branch
and pushes the revamped code.

Major modification includes:
- Movement from multi exe to single daemon model

Revamped code for VPD parser

The commit removes all the pre-existing code from the branch
and pushes the revamped code.

Major modification includes:
- Movement from multi exe to single daemon model.
- Multithreaded approach to parse FRU VPD.
- Better error handling.
- Refactored code for performance optimization.

Note: This code supports all the existing functionalities as it is.

Change-Id: I1ddce1f0725ac59020b72709689a1013643bda8b
Signed-off-by: Sunny Srivastava <sunnsr25@in.ibm.com>

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