* loading files now working

* all docks are described in docks.py file and they use common class
* actions linked to dock visibility is inherited in the class

* initial console committed

* printing now does not disconnect annotations from the image

* support for LCQ advantage max ms^n

* mass selector intensity routine is showing relevant rectangle
* putted accidentally-removed time_selector back

* intensity/mass selector with less spaghetti-code now

* modded code to accept constrained layout in main GUI without major
issues
* added intensity selector - in a dirty way for now

* fixed issues with constrained_layout/get_tightbox call - used when
printing

* fixed multiple lines issue

* fixed duplicities when working with multiple lines

* fix for commit #53fbd3af

* fixed last commit

* removed threading which was problematic
* added support for manual annotation
* printing now in constrained layout

* not nice, but working.

* QStatusBar is now updated in main thread, not in side-thread

* Parameters shifts based on the selected range

* Experimental parameters support for TSQ, without time subselection
* fixed file loading exception handling

* FileTree now loads in better view
* GUI is not frozen anymore during file loading

* rewritten few lines of code to make it more shorter and clear
* moved toolbar into main widget toolbar position

* side-thread cleaned up when closing, so program does not crash
* input sanitization in drltools floatize function

* scan headers now partly supported so they can be debugged in future.

* putted QFileSystemModel into separate thread
* minor glitch fix of DRLtools

* drltools roughly fixed
* not tested!!

* spectrum can be now clipped as table by ctrl+shift+c
* exporting fixed
* drl still broken

* zce fixed
* reformulated time subselection routine - improved readability

* Fix broken __main__ from pt2
* printing/clipping fixed
* for broken things, please refer to pt2

* odd/even fixed
* arrow moving fixed
* times argument now purged when loading new file
* fix colors during odd/even times sub-selection
* drl and zce still broken
* exporting/clipping/printing functions probably broken too