improved text tools

[roambotics_scott]

The text in sketches is great but there are a few minor tweaks that would make it much better.

First - text positioning and autosizing. Basically letting a user put a box where the text should go, enter it, and then have it adjust the point size to fit the text within the boundary. In the box, there could also be options to center, right, and left justify.

Second - improved font support. I don't know how well it works in Windows, but if I use a font from http://tenbytwenty.com/?xxxxtags=fonts I can select the font in Fusion 360 but it doesn't render to an outline and can't be used to emboss.

Finally, it'd be great if there were a level of detail option which could turn on and off things with lots of detailed features (gears, text, etc.) to improve interactive performance 

[roambotics_scott]

One thing in particular that would be easy to implement and huge is just having the text render in place (with the ability to click to locate the cursor) rather than entering it in the dialog.

Another small but very welcome tweak would be full Unicode support. Not sure how often I'd use it but I'd love to be able to do little things like «these quotes» or 令人沮喪的.