Create macro for generating points

[BradenEverson]

Hey! I've been using your dxf crate for an honors project I'm working on for school. I at first created some private macros to make creating points(and drawings from points, but I didn't know how necessary that was to the general public) simpler, and thought I might as well share them here if you found it useful. I decided to write up some docs for the point macro and configure a quick unit test as well, feel free to respond with any feedback you'd like!

If you feel as though the drawing macro(takes in a series of points and returns a closed shape drawing of those points), let me know and I can get another pull request created.

Cheers!

Braden

[brettfo]

Thank you, this looks like a nice addition!

One of the CI steps does some formatting checks that are failing. You can run the checks locally with cargo fmt --all -- --check or if I remember correctly, you can have the formatter fix them for you with cargo fmt --all.

[BradenEverson]

Thank you, this looks like a nice addition!

One of the CI steps does some formatting checks that are failing. You can run the checks locally with cargo fmt --all -- --check or if I remember correctly, you can have the formatter fix them for you with cargo fmt --all.

Sonds good! I'll get that fixed up right away