Signed-off-by: benjamin.jakimow <benjamin.jakimow@geo.hu-berlin.de>

Signed-off-by: benjamin.jakimow <benjamin.jakimow@geo.hu-berlin.de>

changed calls for gdal.Dataset source path from dataset.GetFileList()[0] to dataset.GetDescription() (should be faster and hides irrelevant errors related to image pyramids)
timeseries.py:
- asynchrone loading of source images based on QgsTaskManager (doLoadTimeSeriesSourcesTask, addSourcesAsync)
- TimeSeriesSource dates can be more precices that the related TimeSeriesDatum

Signed-off-by: benjamin.jakimow <benjamin.jakimow@geo.hu-berlin.de>

- closes issue #93 (Python error trying to open stacked time series)
- open file dialog remembers last source file directory

Signed-off-by: benjamin.jakimow <benjamin.jakimow@geo.hu-berlin.de>

Signed-off-by: benjamin.jakimow <benjamin.jakimow@geo.hu-berlin.de>

Signed-off-by: benjamin.jakimow <benjamin.jakimow@geo.hu-berlin.de>

fixed bug in vector layer visualization
pulled qps updates

- Keys as shortcut to access EO TSV settings
- settings are restored during start of EO TSV
timeseriesviewer.settings.value(..., default=...) und .setValue(...) as counterparts to QSettings object
- added SettingsDialog

- added MapCanvasLayerModel, MapCanvas.Command, multi-raster-layer support
- implemented refresh pipeline for timed updates
- QMenu shows Crosshair visibility, fixed some api bugs
- added setSpatialExtent, setSpatialCenter
- spatialExtentHint considers all layers

TimeSeriesViewer:
- added showTimeSeriesDatum fpor scrolling to TSD of interest

TimeSeries + TimeSeriesTableModel + panel:
- support multiple raster per date
- QSortProxyModel allows sorting

utils.py
- added some more TestObject functions

make.py
- resource.py compilation is now python-only.
refactoring + docstrings

stacked image import preserves ColorTable and CategoryNames information (from first input stack band)

mapvisualization.py renderToXml now uses in-memory VRT as dummy VRT

utils.py createQgsField extended to other types of numpy floats
timeseries.py fixed verifyInputImage

startet implementatino of stackedbandinput dialog and required classes