Utility methods for URL query string.
Member of [clia-util](https://github.com/clia/clia-util).
`from_tuple_array`
```rust
let params = [("foo", "bar"), ("baz", "quux")];
assert_eq!(clia_url_qs::from_tuple_array(¶ms).unwrap(), "foo=bar&baz=quux");
```
`from_hashmap`
```rust
let mut params = HashMap::new();
params.insert("foo", "bar");
params.insert("baz", "quux");
let res = clia_url_qs::from_hashmap(¶ms).unwrap();
```