Add Sofia Sans

[RosaWagner]

Unblock PR #2889
upstream: https://github.com/lettersoup/Sofia-Sans

Problem of non-orthogonal design space.

• We can either convince the author to repair his designspace
• Or we only onboard static TTF and forget about the VF
• onboard it under another name

[vv-monsalve]

After last work was done to have a working VF, these were the considered options:

• Publishing it as a static font.
  Would support the current fonts in use in Sofia. But not having VF option until Avar 2 table is available
  • Decision: No, with so many styles, this misses the "compress" benefit; and avar2 is still in a very early phase.
• Publishing it as a VF.
  As a different font, with another name or suffix e.g. Sofia Sans Libre. as it would not give support current fonts
  • Decision: No, there's a huge amount of usage in docs/slides that are imported to Drive using the current family name, and document fidelity is important
• Publishing four single wght axis. E.g. Sofia Sans ExtraCondensed.
  No need to suffix or different name; will have the VF benefits, would give support to current fonts in use, would be possible to update it to a single Sofia Sans vf once Avar 2 table is life
  • Decision: Yes, this can be compatible for document import in terms of avar space, and gets some of the "compress" benefits, and Width axes styles aren't available at all in Workspace at the moment, so this is necessary.

[davelab6]

Thanks @vv-monsalve , I edited your comment to add explanations of the decisions.

[vv-monsalve]

From the above decision, four PR will be made:

• Sofia Sans (for Normal 100 width) (Sofia Sans: Version 4.100-B added #5580)
• Sofia Sans ExtraCondensed (Sofia Sans Extra Condensed: Version 4.100 added #5578)
• Sofia Sans Condensed (Sofia Sans Condensed: Version 4.100 added #5577)
• Sofia Sans SemiCondensed (Sofia Sans Semi Condensed: Version 4.100 added #5579)