Update Iosevka to 2.1.0

[MindTooth]

Description

Update Iosevka to 2.1.0. Please look over if I've done it right. Were a bit scared as the documentation don't specify a approach for just updating a font.

I've copied over the files from the new release, however I'm missing some new styles. But were a bit unsure wether to include them. Please hack at my branch if need be. I've at least done the task of copying each original font into the src folders.

OT: Noticed that the gotta-patch-em-all did not complain about missing the configparser for Python. And I did not notice at firs that the fonts did not get created. Maybe add a check there as well?

Requirements / Checklist

• Read the Contributing Guidelines
• Read or at least glanced at the FAQ
• Read or at least glanced at the Wiki
• Scripts execute without error (if necessary):
  • If any of the scripts were modified they have been tested and execute without error, e.g.:
    • ./font-patcher Inconsolata.otf --fontawesome --octicons --pomicons
    • ./gotta-patch-em-all-font-patcher\!.sh Hermit
• Extended the README and documentation if necessary, e.g. You added a new font please update the table

What does this Pull Request (PR) do?

How should this be manually tested?

Any background context you can provide?

What are the relevant tickets (if any)?

Screenshots (if appropriate or helpful)

[ryanoasis]

Thanks for the contribution @MindTooth 😄 . I will look it over.

Were a bit scared as the documentation don't specify a approach for just updating a font.

Would you mind elaborating? I want to make continuously make the docs better/easier.

If you executed ./gotta-patch-em-all-font-patcher\!.sh XYZ where XYZ is the name of the font it would have re-patched just that particular font set.

It seems like you followed https://github.com/ryanoasis/nerd-fonts/blob/master/contributing.md#steps-for-adding-a-new-font-or-removing-an-existing-font ? If so that should be good enough in most cases

[MindTooth]

Thanks. 😄

Well, when it read only add/remove I felt unsure about right the steps required. An own guide on how to update would help not just for me, but perhaps others as well.

Is a script suitable to do the downloading and patching? Like with this font; it's just a version bump.

[ryanoasis]

I agree with you on a separate guide for UPDATING as well as script to execute the steps. Thanks