PyInfra: Add tool support for Aldec Riviera-PRO

[Paebbels]

Add simulator support for Aldec Riviera-PRO.

Work Items:

• Simulator layer
  • [ ] Derive RivieraPROSimulator module from ModelSimSimulator module
• ToolChain Abstraction Layer
  • [ ] Derive RivieraPRO from ModelSimSimulator
  • [ ] Implement VHDLLibraryTool abstraction (vlib)
  • [ ] Implement VHDLCompiler abstraction (vcom)
  • [ ] Implement VHDLSimulator abstraction (vsim)
  • [ ] Implement output filters for
    • [ ] VHDLLibraryTool - vlib
    • [ ] VHDLCompiler - vcom
    • [ ] VHDLSimulator - vsim
• Implement a new Riviera-PRO command in PoC.py
  • [ ] add a rpro command line command and handler
• Add Riviera-PRO pre-compile support in pre-compile scripts for:
  • [ ] Altera
  • [ ] Intel
  • [ ] Lattice
  • [ ] Xilinx ISE
  • [ ] Xilinx Vivado