addaptions pb_tool
fixes some errors

profilevisualization: UI refactoring, UI title-updates, profile-request action connected with MapTool in main UI,
started to implemente saveTemporalProfiles actions

default colors for new sensor 2D/3D profiles different to existing sensor colors.

plotstyling.py now uses OptionModels

pixelloader.py - loads from valid band-indices only
profilevisualization.py - refactoring, added exampleLyr(sensor)
   several changes related to 3D plotting: added ViewWidget3D(), TemporalProfile3DPlotStyle(PlotStyle), PlotSettingsModel3D(QAbstractTableModel)

Merge branch 'feature/temporalprofiles' of https://bitbucket.org/jakimowb/hub-timeseriesviewer into feature/temporalprofiles

profilevisualization: date2num num2date now based on decimalyear values

profilevisualization.py refactoring, added TemporalProfile.plot()

refactoring PixelLoader. in case of image intersection, overlapping Geometry is truncated to image bounds

SEVERAL CHANGES TO TEMPORAL PROFILE VISUALIZATION
+ dynamic data loading
+ free choice of TemporalProfiles
+ removed dependency to in-memory QgsVectorLayer

updates to virtualrasters.py

https://github.com/pyinstaller/pyinstaller/wiki/Recipe-Multiprocessing

fixed map rendering error: changes in mapview & sensor specific render settings will be applied also on non-visible QgsMapCanvases

utils.py refactoring (loadUi -> loadUI, affects many widget classes)

added cursorlocationvalue.py + panel
added spectrallibraries.py + panel
added a couple of new icons
added trees.py (basic TreeModel system)

TimeSeriesViewer inherits QgisInterface
refactoring maptools
 - added mapcanvas.MapTools
 - TimeSeriesviewer.onShowProfile handles location based maptool requests (CursorLocation, Temproal/spectral prpofiles)