Migration genericobject fields to core

[Rom1-B]

Checklist before requesting a review

Please delete options that are not relevant.

• I have performed a self-review of my code.
• I have added tests (when available) that prove my fix is effective or that my feature works.
• I have updated the CHANGELOG with a short functional description of the fix or new feature.
• This change requires a documentation update.

Description

Since the genericobject plugin has been replaced natively by Assets in glpi11, this PR migrates the fields for assets.

Replace: #992

TODO

• Check that the plugin is up to date (latest version).
• Check the existence and integrity of the glpi_plugin_genericobject_types table.
• Fix the escape bug with itemtypes. For example, the itemtype Glpi\CustomAsset\telephoneAsset becomes Glpi\CustomAsset\ elephoneAsset because the \t sequence is not correctly escaped and is interpreted as a tab.
• Test with large tables.