Persian language and pending typefaces

There is a delay here about the Persian language for Google Fonts.
Since 2016 Persian users have opened issues about adding Persian typefaces and those issues are left without any attention.

In the first place let me say there are some differences between Arabic and Persian characters.

### Numbers:
Arabic has different 4,5,6 numbers to Persian:

### Alphabet:
Arabic:

Persian:

Arabic alphabet does not include

`پ ژ گ چ`

and some other characters, though a few Arabic typefaces, have them as well; [(Lalezar in Google fonts).](https://fonts.google.com/specimen/Lalezar?query=lalezar#glyphs)

***

We have had requests to add Persian fonts (open-source ones) #1997 #2622 #2975.

These are typefaces created by @rastikerdar which are open-source and as I read [here](https://github.com/google/fonts/blob/main/CONTRIBUTING.md), I think there is no problem to have them in Google Fonts to all the world find and use them easily:

### [Vazir](https://github.com/rastikerdar/vazir-font):
The most requested typeface here in the Google Fonts Github repository.

### [Vazir Code](https://github.com/rastikerdar/vazir-code-font):
Let's call it Monospace Vazir that is optimized for programmers.

### [Sahel](https://github.com/rastikerdar/sahel-font) [Variable]
### [Shabnam](https://github.com/rastikerdar/shabnam-font)
### [Parastoo](https://github.com/rastikerdar/parastoo-font)
### [Samim](https://github.com/rastikerdar/samim-font)
### [Gandom](https://github.com/rastikerdar/gandom-font)
### [Nahid](https://github.com/rastikerdar/nahid-font)
### [Tanha](https://github.com/rastikerdar/tanha-font)

### [Estedad](https://github.com/aminabedi68/Estedad) by @aminabedi68

I hope it clears the other issues request and if there is any problem let us know to make the situation proper for publishing these typefaces in Google Fonts.