Typography.OpenFont 
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This module is about reading 
1. Open Font Format  (.ttf, .otf, .ttc, .otc)
2. Web Open Font Format (.woff, .woff2)


References:

ISO/IEC 14496-22:2015, Open Font Format, http://www.iso.org/iso/home/store/catalogue_ics/catalogue_detail_ics.htm?csnumber=66391

Microsoft OpenType Specification, https://www.microsoft.com/en-us/Typography/OpenTypeSpecification.aspx

The Compact Font Format Specification, Technical Note #5176, Version 1, 4 December 2003, https://typekit.files.wordpress.com/2010/12/5176.cff.pdf

The Type2 Charstring Format, Technical Note #517716 March 2000, Adobe, https://www.adobe.com/content/dam/acom/en/devnet/font/pdfs/5177.Type2.pdf

Type1 Font Format, Adobe, https://www.adobe.com/content/dam/acom/en/devnet/font/pdfs/T1_SPEC.pdf

WOFF 1.0, https://www.w3.org/TR/2012/REC-WOFF-20121213/

WOFF 2.0, https://www.w3.org/TR/WOFF2/