modified icons
added icons mIconTemporalProfileAdd.svg, mIconTemporalProfileClock.svg, mIconTemporalProfileSave.svg
labeling.py:
- refactored LabelWidget, which is now based on qps attributetablewidget.ui
- next/previous feature jumpt to next/previous feature of row selections

main.py, EOTimeSeriesViewer:
- added some debugLogs
- adds variable number of LabelWidgets for vector layer to edit
- added addDockWidget()
- added currentLayerChanged signal
- vector layer handling uses central VectorLayerTools instance
- refactoring
- added deselectFeatures()
- added setCurrentLayer, currentLayer()
- added updateCurrentLayerActions()
- added TaskManagerStatusButton to show QgsTaskManger status

mapcanvas.py:
- added KEY_LAS_CLICKED property
- added MapCanvas.sigCanvasClicked signal

mapvisualization.py:
- added/modified MapView().visibleLayers() and layers()
- added MapView().currentLayer()
- added MapView().currentMapCanvas()
- added MapViewWidget().currentMapView() and setCurrentMapView()
- added MapViewWidget().usedLayers()

profilevisualization.py:
- refactored everything (!)
- better and faster model handling
- scheduled plot-updates

temporalprofiles.py
- refactored everything
- data update in parallel thread

deleted temporalprofiles3d.py, temporalprofiles3dGL.py

timeseries.py:
- added crsWkt and rasterUnitsPerPixelX / Y to TimeSeriesSource
- added TimeSeriesLoadingTask(QgsTask)
- refactoring