Check for necessary dependencies in build-script

[richardpringle]

There might be a better way to do this, but currently, all programs require borsh as a dependency and if they use state, they require bytemuck. If you don't supply either of those dependencies, the error messages from the compiler aren't super intuitive. I'm proposing that we do a check in the build-script.

[richardpringle]

Turns out I found a way to solve this. I can either derive Zeroable and Pod, instead of NoUninit... or bytemuck can accept my PR:
Lokathor/bytemuck#259

I think them accepting my PR is the cleaner solution as I don't think we need to be as strict as Pod and Zeroable