Added TextDontClip flag to hodograph text

[collin-volk]

Adding TextDontClip flag when drawing text for the various values drawn on the hodograph. This fixes the clipping issues seen in #233.

[rpdale]

I'm a git newbie - can you walk through the steps of installing a branch?

[collin-volk]

Assuming you have my repo cloned, you should just be able to run the command git checkout -t remotes/origin/branch-name (so for this particular pull request it would be git checkout -t remotes/origin/Hodograph-text-cut-off). There also appears to be a way to do it without having to clone my repo based on this https://stackoverflow.com/questions/9153598/how-do-i-fetch-a-branch-on-someone-elses-fork-on-github but I've not tried it myself so I'm not positive that works.