MG90s Dimension Reference (Measured)

### The STLs are pointless (as this is for dimension reference) but seems the site mandates file of certain formats

####Why I did this:
I was doing a project using MG90, and referenced the dimension by searching google Image, however, when the print is out, the form-factor is just a bit smaller. The manual/documents of MG90 seems not to have detailed dimension. There's a model [Here](https://www.thingiverse.com/thing:2641076), but it's in polygon ,so not convenient for projecting onto sketches as you'll have to reform the center of circle after projection. So I have uploaded step also for other design software.

* This dimension is measured using MG90S variant, so might not be suitable for dimension reference for other variant.
* As it's measured using caliper, the dimension might not be exact
* Will be updated when error is found
* If you find something that doesn't fit, please don't hesitate to comment, and I'll make adjustments
* The holes on servo arms is too smal