Tutorial: Adding unofficial LDraw parts to MLCad

[Santeri Piippo]

I figured to do something like this and started to use a hg repo for my parts work. Except I decided to leave the ldraw core repo out and figured to publish it. https://bitbucket.org/crimsondusk/ldraw-parts

While I agree that a git repo for ldraw would be quite cumbersome since we still need the review process, an API for the parts tracker could allow for some interesting solutions. Heck, I could probably integrate an interface into ldforge for that.