Tracking issue for wavedb

[1024bees]

Prealpha blockers for wavedb implimentation and testing strategy

• Remove Arc or derive clone for Waverr. Gross that Result<T, Arc> exsits.
• Add interface MVP (wavedb interface tracking issues  #9)
• Add bench tests for VCD parsing
• Add e2e integration tests for multiple vcds
  • Add simple integration tests for test_vcds/vga.vcd and test_vcds/test.vcd
  • Generate medium ( > 100 MB) and large ( > 1 GB) sized traces on open source designs
  • Add integration tests for medium traces
  • Add integration tests for large traces