Creates a list of files and/or directories relative to the source root.
pub fn pathList(b: *Build, sub_paths: []const []const u8) []const LazyPath
pub fn pathList(b: *Build, sub_paths: []const []const u8) []const LazyPath {
const graph = b.graph;
const result = graph.alloc(LazyPath, sub_paths.len);
for (result, sub_paths) |*d, s| d.* = path(b, s);
return result;
}