Add versioninfo() helper and a bug report template

[frankier]

Since there are different ways to install RCall.jl, this might speed up triage.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 27 lines in your changes missing coverage. Please review.

Please upload report for BASE (main@f55e50e). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
src/debuginfo.jl	0.00%	27 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #558   +/-   ##
=======================================
  Coverage        ?   84.06%           
=======================================
  Files           ?       27           
  Lines           ?     1738           
  Branches        ?        0           
=======================================
  Hits            ?     1461           
  Misses          ?      277           
  Partials        ?        0           

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[palday]

I like the idea of an issue template, but I don't think we need to make any code changes to support it. 😄