Change log for SHAREPOINT

Date Changes
2025-03-15 Newly created parser.
Mapped the following fields:
- database to principal.process.file.names
- SamAccountName to principal.hostname and principal.asset.hostname
- UserName to principal.user.user_display_name
- UserEmail to principal.user.email_addresses
- ItemType to target.resource.type
- EventType to security_result.description
- Directory to target.file.full_path
- Leaf to target.file.names
- EventData to metadata.product_version
- Created to principal.asset.attribute.labels
- LastModified to principal.asset.attribute.labels
- SecGroupName to target.user.group_identifiers
- SecSamAccountName to target.user.userid
- SecUserName to target.user.user_display_name
- SecUserEmail to target.user.email_addresses
- SecUserRole to target.user.attribute.roles
- SecUserURL to target.url
- SourceModuleName to metadata.product_version
- SourceModuleType to metadata.product_event_type
- SHAREPOINT to metadata.vendor_name and metadata.product_name