The previous setup used Scala 2.12 even though Chipyard was trying to
override it to use 2.13.10.
Also sync Chisel minor versions with Chipyard, and update to a recent
sbt version.
* remove outdated files
* pulled resetinverter from dsptools + setup repo
* fix some package names, misc. dsptools dependencies, typo in build.sbt, + circuitstate in resetinverter pass
* add more comprehensive gitignore + license back in
* create directory structure to match package structure
* change package names to barstools.tapeout
* settled on barstools.tapeout.transforms package
* make directory + build structure more amenable for multiple sub projects
