Added append_array to Array

[yuvalsw]

This change is 

[orizi]

Reviewed 2 of 2 files at r1.
Reviewable status: all files reviewed (commit messages unreviewed), 1 unresolved discussion (waiting on @yuvalsw)

---

corelib/src/array.cairo line 47 at r1 (raw file):

            };
        };
    }

Suggestion:

    fn append_span<+Clone<T>, +Drop<T>>(ref self: Array<T>, mut span: Span<T>) {
        match span.pop_front() {
            Option::Some(current) => {
                self.append(current.clone());
                self.append_span(span);
            },
            Option::None => {}
        };
    }

[yuvalsw]

Reviewable status: 0 of 3 files reviewed, 1 unresolved discussion (waiting on @orizi)

---

corelib/src/array.cairo line 47 at r1 (raw file):

            };
        };
    }

Done.

[orizi]

Reviewed 3 of 3 files at r2, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @yuvalsw)