Refactor starknet libfuncs to use the BlockExt trait
See: https://github.com/lambdaclass/cairo_native/pull/518
Refactor the code implementing the libfuncs to use the trait methods from BlockExt.
Note: this one is more work than the others.
@edg-l Hello, I would like to work on this issue :)
@edg-l Can I work on this issue?
Hey @fabrobles92 , are you taking this issue?
@edg-l @azteca1998 Can you assign me? I'll work on this
@edg-l @azteca1998 Tests are passing. Please assign this issue :)
i will like to jump on it
Done by #694.