In CegoAction, make the following distribution ready
- show systemspace
- check index
- create, list set, drop counter
Manage append mode also for distributed queries
Idea : With session request append mode is set up
    
- user management with new role concept should be adapted for distributed mode
- serial protocol must be adapted for distributed mode

- Tableset import : allow tableset a to be imported as tableset b ( different names ) 

- improve query plans 

- expand system tables to show more information abuout keys, add information for checks

- BTree implementation
 o table correction



     
