[issue22679] Add encodings of supported in glibc locales

[Serhiy Storchaka]

Changes by Serhiy Storchaka <storchaka at gmail.com>:


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dependencies: +Python does not support the GEORGIAN-PS charset, missing vietnamese codec TCVN 5712:1993 in Python

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue22679>
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