Vulnerability detection notification message

[Dwordcito]

Description

### WIP

This issue aims to implement a specific notification from the agent to vulnerability detection features running on the manager side.

Functional requirement

Packages install (type packagelist)

Vulnerability detection will run a scan based on requests to detect new elements in the agent inventory.

    {
        "type": "packagelist",
        "agent": { data },
        "package": [{ data }, { data }],
        "hotfixes": ["KB1","KB2","KB3"],
        "os": {data}
   }

Content update, Hotfix install, hotfix remove, os modify, firstscan (type fullscan)

    {
        "type": "fullscan",
        "agent": { data },
        "package": [{ data }, { data }],
        "hotfixes": ["KB1","KB2","KB3"],
        "os": {data}
   }

Packages remove

For deleted elements in the syscollector inventory, the agent module will remove all elements from the vulnerability inventory.

We will send the stateless and stateful messages without the intervention of the vd scanner.

Error handling

2xx -> With response, if any field of some elements is invalid or incomplete, we discard from the response the element result.
5xx -> Wait and retry