New plugin: Orgmode CM6

Orgzly search

It was already possible to display orgmode tasks in markdown files with a code block like:

```orgmode-tasks
filepath: Orgmode/Orgmode file.org
```

Now a powerful filtering is possible with orgzly search (see Orgzly | Notes & To-Do Lists)

```orgmode-tasks
filepath: Orgmode/Orgmode file.org
query: i.canceled and ( s.tomorrow or c.today )  # canceled tasks scheduled until tomorrow or closed today
```

This kind of code blocks renders like this:

image