add Application class; update CLI and Script for new architecture

lib/rscons/script.rb

@@ -4,22 +4,30 @@ module Rscons
   # the DSL for the build script to use.
   class Script
 
-    class << self
+    # @return [String, nil]
+    #   Project name.
+    attr_accessor :project_name
 
-      # Load a script from the specified file.
-      #
-      # @param path [String]
-      #   File name of the rscons script to load.
-      #
-      # @return [Script]
-      #   The loaded script state.
-      def load(path)
-        script_contents = File.read(path, mode: "rb")
-        script = Script.new
-        script.instance_eval(script_contents, path, 1)
-        script
-      end
+    # @return [Boolean]
+    #   Whether to autoconfigure if the user does not explicitly perform a
+    #   configure operation before building (default: true).
+    attr_accessor :autoconf
 
+    # Construct a Script.
+    def initialize
+      @project_name = nil
+      @autoconf = true
+    end
+
+    # Load a script from the specified file.
+    #
+    # @param path [String]
+    #   File name of the rscons script to load.
+    #
+    # @return [void]
+    def load(path)
+      script_contents = File.read(path, mode: "rb")
+      self.instance_eval(script_contents, path, 1)
     end
 
   end