Use explicit numeric generics in the stdlib

[vezenovm]

Problem

After the warning introduced in #5155 for implicit numeric generics compiling without --silence-warnings litters the console with output:

Happy Case

Use explicit numeric generics in the stdlib to cleanup up nargo compile output

Project Impact

Nice-to-have

Impact Context

No response

Workaround

None

Workaround Description

No response

Additional Context

No response

Would you like to submit a PR for this Issue?

None

Support Needs

No response

[vezenovm]

Closing as this was resolved by #5155