Add c bindings

[adam-hanna]

No description provided.

[miguelmota]

adding c binding seems hacky. I think it's worth implementing the util functions in every language bc it's simple hex encoding/decoding

[adam-hanna]

@miguelmota
Yeah, that's a good thought. My main reasoning was two-fold:

1. We would eventually add c bindings for almost every piece of code, making it easier to support other languages, at least initially
2. Any changes would only need to be made in one repo, reducing bugs

[miguelmota]

1. the util functions are trivial enough that it may take less time to implement than figuring out c binding integration for the language

2. this is true, though there's the possibility that edge cases could exist which would be harder to debug

3. it makes the application bundle bigger and native implementation will have a faster start time

[adam-hanna]

All good points. I'll add another con to your list:

4. it requires go to be installed and $ make deps for any sdk that uses it.

[miguelmota]

good to know