feat: preprocess native argv into sentinel slices

std/process/process.hon

@@ -6,21 +6,5 @@ Init :: struct {
 }
 
 Args :: struct {
-	values [][*;0]u8
-}
-
-argument_count func(args Args) usize {
-	return args.values.len
-}
-
-argument func(args Args, index usize) ?[;0]u8 {
-	if index >= argument_count(args) {
-		return null
-	}
-	pointer :: args.values[index]
-	length usize := 0
-	while pointer[length] != 0 {
-		length += 1
-	}
-	return pointer[..length;0]
+	values [][;0]u8
 }