deadbeef-archreader compile failure fix+other issues

[pensive-fuzz]

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Various concerns:

• It has a compile failure: error: invalid conversion from ‘int’ to ‘blargg_err_t’ {aka ‘const char*’} [-fpermissive] This issue can be resolved with the blargg patch from the abandoned deadbeef-overlay. The other patch isn't needed to compile and I'm not sure of what value it does or doesn't bring.
• Why is it named deadbeef-archreader over deadbeef-archive-reader? archreader is less descriptive, it's never referenced as such on its site, and you use the full name for other plugins in this repository
• The description misspells DeaDBeeF and is otherwise awkwardly worded. I'd go with something like: DeaDBeeF archive reader plugin that enables playing files directly from RAR, 7z and Gzip archive files
• You have the wrong license. It's licensed under LGPL-2.1

[istitov]

Thanks for pointing it out will look into it ASAP!

[LebedevV]

Many thanks, we applied corrections. Could you please check it again?