add std.zip and support zip files in build.zig.zon

fixes #17408

Co-authored-by: Joel Gustafson <[email protected]>

Author: marler8997

lib/std/std.zig

@@ -104,6 +104,7 @@ pub const unicode = @import("unicode.zig");
 pub const valgrind = @import("valgrind.zig");
 pub const wasm = @import("wasm.zig");
 pub const zig = @import("zig.zig");
+pub const zip = @import("zip.zig");
 pub const start = @import("start.zig");
 
 const root = @import("root");