[gNOI] Add support for gNOI Factory Reset

[VSuryaprasad-HCL]

Manual CLI Testing Results

Start RPC

Since, the EXECUTE_BOOT_INSTALL_COMMAND is not being provided in the backend file [ gnoi_reset.py] . We're setting reset_success as false with detail string "boot count execution failed".

factory_os:

"admin@sonic:~$ docker exec gnmi gnoi_client -target 127.0.0.1:8080 -notls -module FactoryReset -rpc Start -jsonin '{""factoryOs"": true}'
Start Factory Reset.
{""Response"":{""ResetError"":{""other"":true,""detail"":""Failed to get the boot install value.""}}}"

"admin@sonic:~$ docker exec gnmi gnoi_client -target 127.0.0.1:8080 -notls -module FactoryReset -rpc Start -jsonin '{""factoryOs"": false}'
Start Factory Reset.
{""Response"":{""ResetError"":{""other"":true,""detail"":""Failed to get the boot install value.""}}}"

zero_fill:

"admin@sonic:~$ docker exec gnmi gnoi_client -target 127.0.0.1:8080 -notls -module FactoryReset -rpc Start -jsonin '{""factory_os"": true, ""zero_fill"": true}'
Start Factory Reset.
{""Response"":{""ResetError"":{""zero_fill_unsupported"":true,""detail"":""zero_fill operation is currently unsupported.""}}}"

"admin@sonic:~$ docker exec gnmi gnoi_client -target 127.0.0.1:8080 -notls -module FactoryReset -rpc Start -jsonin '{""factory_os"": true, ""zero_fill"": false}'
Start Factory Reset.
{""Response"":{""ResetError"":{""other"":true,""detail"":""Failed to get the boot install value.""}}}"

retainCerts:

"admin@sonic:~$ docker exec gnmi gnoi_client -target 127.0.0.1:8080 -notls -module FactoryReset -rpc Start -jsonin '{""factoryOs"": true, ""retainCerts"": true}'
Start Factory Reset.
{""Response"":{""ResetError"":{""other"":true,""detail"":""Failed to get the boot install value.""}}}"

"admin@sonic:~$ docker exec gnmi gnoi_client -target 127.0.0.1:8080 -notls -module FactoryReset -rpc Start -jsonin '{""factoryOs"": true, ""retainCerts"": false}'
Start Factory Reset.
{""Response"":{""ResetError"":{""other"":true,""detail"":""Failed to get the boot install value.""}}}"

[mssonicbld]

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[VSuryaprasad-HCL]

@ndas7 , @kishanps , @rkavitha-hcl could you please review the PR