add eol notice, update most subs and move to TokTok source

[Green-Sky]

EOL, see https://github.com/qTox/qTox#this-repository-and-qtox-are-unmaintained

Due to a lack of resources, qTox is no longer maintained.
If someone with provable C++ experience and sufficient resources to maintain qTox wants to take over I'm happy to discuss that. Meanwhile be careful about "official forks" of qTox unless you read it here, they are probably not official.

closes #29
closes #28
closes #30
closes #27

[flathubbot]

Started test build 161223

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Build 161223 failed

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Started test build 161253

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Started test build 161260

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Started test build 161331

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[Green-Sky]

bot, build

[flathubbot]

Queued test build for io.github.qtox.qTox.

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Started test build 161348

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Build 161348 successful
To test this build, install it from the testing repository:

flatpak install --user https://dl.flathub.org/build-repo/144418/io.github.qtox.qTox.flatpakref