Implement Woff and Woff2

[prepare]

1. Woff

ref https://www.w3.org/TR/WOFF/
some impl => https://github.com/manne/Woff.net

2. Woff2

ref https://www.w3.org/TR/WOFF2/

some impl=> https://github.com/google/woff2

There is a C# port of brotli, see google/brotli#494
and google/brotli#519

https://fontvau.lt/

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@prepare's note:

• Woff see=> a0083bf

• Woff2 => ok aadfbaa

[prepare]

Sarabun-Regular.woff2, Typography reads and restores woff2

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Roboto-Regular.woff2

[prepare]

woff => needs Zlib decoder
and
woff2 => needs Brotli decoder.

The Typography dose not provide built-in Zlib/Brotli decoder
you need to add it by your own (select any lib you want) .

In the sample projects
I provide some libs (in Unpack project) to demonstrate this.

pic 1: add 'external' Zlib decoder

pic 2: add 'external' Brotli decoder

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Zlib from ...

MIT, 2018, SharpZipLib, https://github.com/icsharpcode/SharpZipLib

Brotli from ...

MIT, 2009, 2010, 2013-2016 by the Brotli Authors., https://github.com/google/brotli

MIT, 2017, brezza92 (C# port from original code, by hand), https://github.com/brezza92/brotli

MIT, 2019, master131, https://github.com/master131/BrotliSharpLib