Implement document change tracking

[hyzx86]

Add a series of hooks to the session to monitor the update of the document object and implement actions after the document changes.

Such as implementing dynamic indexing, which seems to be difficult with the current design of Yessql.

In OC, neither ContentHandler nor a fake IndexProvider can determine whether an object needs to be saved to the database immediately. So the custom dynamic indexing functionality can only be written to the database immediately each time

            context.For<EocContentItemMapIndex>().When(contentItem =>
            {
                _serviceProvider = ShellScope.Services;
                UpdateIndex(contentItem).GetAwaiter().GetResult();
                return false;
            });

Through these hooks, we can insert custom code into the _commands list of the Session to achieve free insertion when the document is updated

relate:
#505

[hyzx86]

@sebastienros Could you please help me to review this PR? thanks.

[hyzx86]

Use another PR #525