fixed temporal profile visualization

SpectralLibraryWidget (wip)

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

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

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

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)

MapCanvas: used MapCanvasLayerModel that support lazy loading of QgsMapLayer instances
MapViews can have individual vector layer sources for overlay

several updates to mapvisualization.py
cleanups + refactoring

fixed icon of mainwindow

changen MapViewUI layout form horizontal to vertical
added MapView specific crosshairs

first steps to change MapViewCollection UI

added __main__.py (in progress)
added option to load center pixel automatically

added # -*- coding: uft-8 -*-   and  # noinspection PyPep8Naming to each module
added GPL License statement to each module
added from __future__ import absolute_import to each module

added TimeSeriesTableView, started to implement contextMenu...

added PixelLoaderResult(object)
adjusted TSV icon
changed test_pixelloader.py

moved loadUIFormClass(jp(DIR_UI, p)) to utils.py and (yessss!) removed an error occurred with newline character in *.ui inline HTML

UI fixes