Adapt rules to the new Windows registry monitoring

[Molter73]

Description

This PR changes some of the existing syscheck rules and adds new ones in order to properly generate alerts according to the new registry scan feature.

Some of the changes introduced include:

• Creation of groups syscheck_file and syscheck_registry to group alert according to the type of element that triggered it.
• Creation of groups syscheck_entry_deleted, syscheck_entry_added and syscheck_entry_modified to group alerts according to the type of event that triggered it.
• Modified existing, unused registry rules to adapt them to the new registry events.
• Created registry value specific rules.