zmq4: add option for automatic reconnect

[thielepaul]

I have not tested this yet, it's meant as discussion base for #124

Fixes #124

[thielepaul]

I tested it for pub and sub sockets: for pub sockets it works fine, for sub socket I have the problem described in #116

[codecov[bot]]

Codecov Report

Merging #127 (a2090eb) into main (ae18bc0) will decrease coverage by 0.00%. The diff coverage is 100.00%.

:exclamation: Current head a2090eb differs from pull request most recent head 978883a. Consider uploading reports for the commit 978883a to get more accurate results

@@            Coverage Diff             @@
##             main     #127      +/-   ##
==========================================
- Coverage   67.58%   67.58%   -0.01%     
==========================================
  Files          29       29              
  Lines        1820     1823       +3     
==========================================
+ Hits         1230     1232       +2     
- Misses        490      491       +1     
  Partials      100      100              

Impacted Files	Coverage Δ
options.go	66.66% <100.00%> (-16.67%)	:arrow_down:
socket.go	84.18% <100.00%> (+0.27%)	:arrow_up:
internal/inproc/inproc.go	72.15% <0.00%> (+1.26%)	:arrow_up:

---

Continue to review full report at Codecov.

Legend - Click here to learn more Δ = absolute <relative> (impact), ø = not affected, ? = missing data Powered by Codecov. Last update ae18bc0...978883a. Read the comment docs.

[sbinet]

please rebase off the latest main, thanks.

[sbinet]

please rebase off the latest main, thanks. (yeah, stacked PRs are a bit of a pain on github.)

[thielepaul]

please rebase off the latest main, thanks. (yeah, stacked PRs are a bit of a pain on github.)

No problem, thank you for taking the time to review my PRs!

[thielepaul]

last remaining nit-picks. looking good :)

thx, I applied them