Asammdf

Fixes
* fix error in keeping up with the current position in the finalization shim
* handle misrepresentation of byte arrays as unsigned values with a bit count higher than 64
* fix for Motorola signals
* fix get_can_signal for Motorola signals
* fixes 325
* fix attribute error for MDF v3 channel extension block

Fixes
* fix error in _get_can_signal_

Changes
* add _data_ argument to _get_can_signal_

Fixes
* removes some unwanted prints

Fixes
* fix offsets in mdf4 structures with non-byte members (PR313) thanks to dxpke
* fix issue 317, 318
* fix index error in extract_can method
* fix signal distortions when trimming before plot


Changes
* improve memory usage during sorting
* add option to automatically close ErrorDialog after a timeout

Fixes
* cease explicit propagation of unhandled key combinations to parents
* fixes 310 , 311, 312
* fix can extraction in case of CAN OBD2 messages and ignore_invalid_signals=True
* avoid urllib error in tests
* handle VLSD channels with channel_type Unsigned motorola or unsigned intel


Changes
* persisting last opened file path in QSettings
* connecting 'Ctrl + O' shortcut to Open File
* sync regions in the sub-plots