Scalable Vector Graphics (SVG) Export of Figures

See release notes for this release on GitHub: https://github.com/jschwizer99/plot2svg/releases/tag/v1.9.0

- 1xn char arrays for tick labels
- Fix for 'Index exceeds matrix dimensions'
- Fix for another axis label problem
- Fix for line style none of rectangles
- Enabled scatter plot functionality

- Fix for degree character
- Fix for problems with dash-arrays
- Modified shape of triangles
- Removed versn as return value of function fileparts
- Fix for images

- Bugfix for ticklabels outside of the axis limits
- Enabled scatter plots using hggroups
- Closing patches if they do not contain NaNs
- Support of the 'Layer' keyword to but the grid on top of
of the other axis content using 'top'

Bugfixes and support of user requests. See 'Changes in Version 06-Mar-2010' for more information.

- Bug fixes for text size / line distance
- Support of background box for text
- Improved support of filters
- Experimental support of animations
- Rework of latex string handling
- 'sub' and 'super' workaround for Firefox and Inkscape

Improved SVG filter support, bugfixes, improved text support, more examples for the advanced filter usage.

Bugfixes and preliminary support of SVG filters, clipping, and improved axis tick labels.

Several bugfixes and better support of 3D graphics

Important bugfix solving the problem described in the last rating.

Many thanks
Juerg Schwizer