- Create new VcsBackendAnnotation
- Create support utilities for Vcs building tools
  - CopyVpiFiles move vpi and header files into place
  - GenVcsVerilogHarness  Compile stuff
  - VcsAnnotations control behavior of the Vcs backend
- Create VcsBackend, a trivial sub-classing of VerilatorBackend
- Create VcsExecutive
  - constructs VcsBackEnd requirements calls the constructor
- Create SimpleVcsTests
- Added String to Uniquify Verilator and Vcs Tests

- Fixed CopyVpiFiles
  - looks like this might fail if early file was there but a late one wasn't
  - this code came from chisel-testers
- Fix top level test names
  - behavior of "Testers2 with Vcs"
  - behavior of "Testers2 with Verilator"
- Shortened VCS to just see if a simple circuit will build and simulate.
  - in long run we still need mechanism to run an arbitrary test with arbitrary backend

- Create new VcsBackendAnnotation
- Create support utilities for Vcs building tools
  - CopyVpiFiles move vpi and header files into place
  - GenVcsVerilogHarness  Compile stuff
  - VcsAnnotations control behavior of the Vcs backend
- Create VcsBackend, a trivial sub-classing of VerilatorBackend
- Create VcsExecutive
  - constructs VcsBackEnd requirements calls the constructor
- Create SimpleVcsTests
- Added String to Uniquify Verilator and Vcs Tests
- Suppress VCS tests if VCS not present in path
  - Updates to PR #58
  - Fixed CopyVpiFiles
    - looks like this might fail if early file was there but a late one wasn't
    - this code came from chisel-testers
  - Fix top level test names
    - behavior of "Testers2 with Vcs"
    - behavior of "Testers2 with Verilator"
  - Shortened VCS to just see if a simple circuit will build and simulate.
    - in long run we still need mechanism to run an arbitrary test with arbitrary backend

…d-vcs-backend-support

# Conflicts:
#	src/main/scala/chiseltest/internal/Testers2.scala