Latest improvements added to NaroCAD

We did a lot of improvements to NaroCAD after we released 1.5.0. Once with design performance improvements you will see improvements on UI:
- the property grid styles was changed a little;
- changed the appearance order of the splash, narocad and tips window;
- also added custom cursors for all the 2D shapes;

And for our contributors or just the ones who download NaroCAD sources we fixed the project building errors(now it works on the first build), and we fixed most of the NUnit tests.
This improvements will be available on the Nightly Build;