Plot-data

Fixes
- Multiplot Drawing + its review

Refactor
- Remove ill code
- Files organization 1
- Change names of classes and functions (e.g. remove 'new' prefix)
- Files organization 2

Add
- Draw to replace PrimitiveGroups
- Rectangle shapes

Fixes
- Text handling and writing

Fixes
- Handle empty elements in Scatter
- Offset & Margin in ParallelPlot
- Performance for curves drawing in ParallelPlot
- Events on window outside canvas are disabled for sure

Add
- Parallel plot feature with:
- Movable axes
- Scalable axes
- Possibility to translate local values of axes
- Rubberbands
- Mouse handling on curves
- Possibility to switch orientation
- Possibility to change sense of axes by clicking on their title
- Line shape with its variants
- ParallelPlot in multiplot with mouse interactions

Refactor
- newAxis
- newText
- Mouse handling in objects
- MouseWheel interactions

Refactor
- First implementation of Scatter as a Frame plot
- Add SelectionBox object and allow to draw it on any BasePlot, interacting with RubberBands
- Add method to merge scatter points
- New Scatter frontend implementation:
- Selection Boxes
- Mouse interactions
- Zoom boxes
- Clustering
- Fixed mouse behavior for almost all cases of selection
- Reset actions
- Dependencies of sample states between plots
- Use attributes coming from Python
- Point families implementation as PointSet
- Graph2D implementation

Removed
- Package Version checks is not implemented anymore

Add
- Tooltip in Histograms, which can be drawn only in the current window plot
- Avoid huge bugs or problems with frontend implementation

Fix
- Automatic font size and positioning
- Background for texts
- Review the way ticks are computed
- Review the way clicked and hovered objects are handled

Refactor
- Remove old Histogram and switch ScatterMatrix to Multiplot
- Rename newHistogram as Histogram
- Light refactor of mouse attributes

Fix
- plot_canvas function in python (needed width and height arguments) (in dev too)