Be able to lock/unlock segments in the editor by a PM

The project manager will be able lock or unlock segments in translate5s editor for linguists, that work on the task.

He/she will be able to do that any time, when he is able to open a task for editing.

He/she can

• lock/unlock single segments with a click/keyboard short-cut
• lock/unlock all segments in the current filter set of translate5

If the task property "Edit unchanged 100% TM matches" is changed, the single settings of each affected segments are overwritten. So if a PM chooses to unlock a locked 100% match, and another one changes the task property unlock and then lock again, the previously unlocked segment is locked again.

If a segment is locked, because it has already been locked in the imported (sdl)xliff, it will NOT be possible to unlock it by the PM. To communicate the difference for processing status for those segments a new processing status "locked in imported bilingual document" will be introduced and the PM will get an error message, if he tries to make those segments editable.

The changes are not reflected via messagebus to other users working on the same task. They get the changed segments when the grid refreshes. Collisions should be very unlikely, since only PMs are (un)locking.