std: add ArrayList.eql for parity with std.Buffer
std: add ArrayList.eql for parity with std.Buffer

raulgrell/zig,zig-lang/zig,zig-lang/zig,raulgrell/zig,raulgrell/zig,zig-lang/zig,andrewrk/zig,andrewrk/zig,raulgrell/zig,raulgrell/zig