HDL Checker v0.6.13

• Changed a couple of aspects of the server suggesting to use a config file
  • Only issue the notification if the user hasn't specified a config file already (fixes #77)
  • Also increased the time to trigger this from 15 to 30 seconds
• Invalidating cache file on version change (fixes #74)
• Disable logging and stderr when starting the server via --log-stream NONE and/or --sterr NONE respectively (fixes #73)
• Adding hook to __main__.py to allow python -m usage
• Added some support for textDocument/references LSP method
  • Please not that this only provides references for items that HDL Checker knows about to support inferring libraries and determining the compilation sequence