Add Skinny Pennies

**Font Project Git Repo URL: https://github.com/RDTurcios/Fonts-and-Stuff**

**Super short description of the Font Family: Regular**

**Requirements:**

I understand that Google Fonts will publish only fonts that matches its requirements, and I can confirm the project meets them (by ticking the cases, or putting x between the square brackets in text mode):

- [x] The entire font project is licensed under the [OFL](https://scripts.sil.org/cms/scripts/page.php?site_id=nrsi&id=OFL)
- [x] There is no "Reserved Font Name" mention in the OFL license
- [x] Family name is unique according to namecheck.fontdata.com
- [ ] The font supports at least [GF Latin Core glyphset](https://github.com/googlefonts/glyphsets/blob/main/Lib/glyphsets/encodings/GF%20Glyph%20Sets/GF-latin-core_unique-glyphs.nam)
- [ ] The repository respect the [upstream repo structure](https://github.com/googlefonts/gf-docs/tree/main/Spec#upstream-repo-structure)
- [ ] The source files are available in the repository
- [ ] I read, agree and comply with the full [contributing requirements](https://github.com/google/fonts/blob/main/CONTRIBUTING.md)
- [x] I am the author of the font or the author agreed to this submission
- [x] I will maintain the repository

Start with CONTRIBUTING.md and the linked upstream-repo-structure requirements, then inspect the Font Project Git Repo URL. Confirm the unchecked requirements, including the GF Latin Core glyphset, repository structure, source-file availability, and contributor compliance. Done means the submission meets those requirements and the checklist can be completed.

Written by the indexing model from the issue text.