[Feature request] Allow a method for organizing todos into different boards or labels.

Allow a method for organizing todos via f.x. boards similar to Taskbook. This would use @labels to create so called boards which can then be queried with todo list @boardname to only show tasks belonging to the queried board. Calling todo list on its own would list all boards e.g.

@work
- task A
- task B

@personal
- task C
- task D

@projectname
- task E
- task F