QUEUE & MOD: Now the update total count includes the number of favorites in each lists & less verbose queue

When importing favorites, the db lock will be always taken by the repo
module, this is bad for lektord because the main thread will no longer
be able to lock and use the db. It will also use constantly the hard
drive.

An easy and dirty fix is to sleep a bit...

- Add events and handler in the lkt_queue
- Display the new data with lkt
- Now printings lines of files alongside the function names

WIP: Add events to set the total number of items to update and a tick event to make the update progress. Not used for the moment by the repo module

- lkt queue delete now deletes by position in the queue
- lkt queue remove now deletes by id in the queue

LKT: Add swap and swapid commands, now the queue pop uses the delete instead of the deleteid command

LKT: add the "queue id" and "queue flatten" commands, update the "shuffle" command to not force 'play', but unpause the playback

- swap was not check in handle_simple_command
- one additional sqlite3_finalize segv lektord

Don't support delete a range of kara in the queue, just a position.

NOTE: Still need to add the module function "set_position(int)" in the
sdl2 player module.