cli: create an --advanced layout

[skip ci]

Needs to be documented (new page?) and needs to be updated for unit tests.

bin/squib

@@ -2,27 +2,4 @@
 require 'squib'
 require 'mercenary'
 
-Mercenary.program(:squib) do |p|
-  p.version Squib::VERSION
-  p.description 'A Ruby DSL for prototyping card games'
-  p.syntax 'squib <subcommand> [options]'
-
-  p.command(:new) do |c|
-    c.syntax 'new PATH'
-    c.description 'Creates a new Squib project scaffolding in PATH. Must be a new directory or already empty.'
-
-    c.action do |args, options|
-      Squib::Commands::New.new.process(args)
-    end
-  end
-
-  p.command(:make_sprue) do |c|
-    c.syntax 'make_sprue'
-    c.description 'Creates a sprue definition file.'
-
-    c.action do |args, options|
-      Squib::Commands::MakeSprue.new.process(args)
-    end
-  end
-
-end
+Squib::CLI.new.run