Create indexes for contents

One of the most needed things in the dedicated hosting option is index creation. By making this dynamic, it should be possible to create a dynamic index for fields within a schema. In this way, very useful and fast systems can be produced.

There are actually new APIs for that (and CLI support) since a week. But I am not sure if I want to build a UI for that. It is a dangerous feature.

For usability, it must be on the interface. If we consider that it will only be active for dedicate hosting, users should decide on this. Perhaps this feature can be made available by assigning it to certain roles on the interface.