• Added support for routes with placeholder types.
  
• Added types attribute to Mojolicious::Routes and Mojolicious::Routes::Pattern.
  
• Added add_type method to Mojolicious::Routes.
  
• Added to_file method to Mojo::Asset, Mojo::Asset::File and Mojo::Asset::Memory.
  
• Added num placeholder type to Mojolicious::Routes.
  
• Removed deprecated use of Mojo::Promise::all and Mojo::Promise::race as instance methods.