Added support for toggleable mono wideness.

[LunaTheFoxgirl]

This PR adds support for toggling between mono and stereo wideness by double pressing the Right shift key, the key is configurable with the -a option. And mono wideness can by default be turned on with -A. allowing for more flexibility.

[zevv]

Thanks for the PR, but the feature seems a bit far fetched to me. What is the use case you see here, isn't enough to provide a choice between mono or stereo at startup, and why whould a user want to swich on the fly? Quoting Clipsey (2017-10-19 17:04:05)

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This PR adds support for toggling between mono and stereo wideness by double pressing the Right shift key, the key is configurable with the -a option. And mono wideness can by default be turned on with -A. allowing for more flexibility. You can view, comment on, or merge this pull request online at: #67 -- Commit Summary -- * Added support for toggleable mono wideness -- File Changes -- M main.c (50) -- Patch Links -- https://github.com/zevv/bucklespring/pull/67.patch https://github.com/zevv/bucklespring/pull/67.diff -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: #67

-- :wq ^X^Cy^K^X^C^C^C^C

[LunaTheFoxgirl]

So, on a pair of speakers, stereo wideness sounds WAYYY better, but on headphones (to me) I'd like it to be mono.
This is something I use myself, but ofc. it won't be useful to everybody.

Meaning i won't have to restart the application to change between them if i decide to turn on my speakers, for example.