Added center holes

Adjusted trace sizes + via sizes + text formatting

Fixed library merge conflict

Removed libraries

Adjusted README

Merge pull request #40 from hytech-racing/cleanup Cleanup

Merge pull request #41 from hytech-racing/default-dru Added default DRC to pass any of the fabs

Added default DRC to pass any of the fabs

Merge pull request #34 from hytech-racing/dru-update Updates DRC collection

fixed core vs prepreg for jlc, oshpark, and see