Add chrono-tz and its dependencies
chrono-tz is a dependency of i3status-rs
It itself depends on phf (a collection of crates "to generate efficient lookup tables at compile time using perfect hash functions."), also included in this MR.
chrono-tz is a dependency of i3status-rs
It itself depends on phf (a collection of crates "to generate efficient lookup tables at compile time using perfect hash functions."), also included in this MR.