[Agent] Update on Windows

To update the agent on windows, proceed as follows.

1. Copy the serverinfo.cfg file in the cfg directory.
2. Remove 'insightVew Monitoring Agent' program on the [Control panel]-[Program remove].
3. Install the new agent of windows.
4. Stop the following service of agent on the [Service].
insightVew Monitoring Agent
insightVew Monitoring Wdog of Agent
5. Restore the serverinfo.cfg file to the cfg directory of the new agent.
6. Start the 'insightVew Monitoring Wdog of Agent' service on the [Service].