Anystructure

* Color coding
* Updated documentation
* Improved multiple optmization harmonizer
* Improved report generator

* Span optimizer bug fixed.
* Stress scaling caused somewhat consevative results. Fixed.
* Arrow navigation added.
* GUI modificaitons.
* Multiple optmization improved.

* GUI updates
* Shortcut updates
* Harmonization option for multiple optimization
* z* toggle on/off
* Lots of minor bug fixing, no known bugs at the moment

* Corrected a bug when saving tank grid.

* Fixed an issue with tank identification for lines.
* Small update to example file.
* Opened file displayed at top.

* Change load factors option added.
* Improved load information.
* External pressures GUI improved.
* Updated documentation.