Write support for FAT32

[o8vm]

KRaBs supports the FAT32 filesystem, but only the read feature is available. To add the recovery mode feature #18 , we need to implement write() for FAT32 module as well.

[Spxg]

hello o8vm, I'm rewriting the fat32 crate. I hope that would be useful for you.

[o8vm]

Hi! Thanks for the information of your fat32 crate.
Your implementation looks very nice and clean. I've been referring to it since the first implementation!

I'm rewriting the fat32 crates.

Very cool!
I’ll be sure to check this out.

[Spxg]

It seems work well in my embedded device.

[Spxg]

Hi, new version has released. Tests passed in my bootloader. I hope that would be useful for you.

[o8vm]

Thank you! I'll be sure to check it out when I get time.