added option to make config without running the server

src/kotatsu.cr

@@ -37,6 +37,16 @@ module Kotatsu
       exit
     end
 
+    parser.on "-mc", "--make-config", "Creates config file without running kotatsu" do
+      if File.exists?(CONFIG_FILE) == false
+        makeConfig(CONFIG_FILE, CONFIG_DIR)
+        exit
+      else
+        puts "Config already exists"
+        exit
+      end
+    end
+
     parser.invalid_option do |flag|
       STDERR.puts "ERROR! Not a valid option: #{flag}"
       STDERR.puts "Use -h or --help for all available options"