Need To Add check If perfmon sensor file is exist then only configure sensor command should run

[jayeshh123]

Reference PR: #811

1. Need To Add check If perfmon sensor file is exist then only the configure sensor command should run else it will fail if sensor in not installed.

• " 'mmperfmon: There is no performance monitoring configuration data.' not in scale_zimon_conf_sensors.stderr"

2. Need to add sample inventory file for config.yml changes