Add golang cookbook

Needs updating of ark and git cookbooks

cookbooks/golang/attributes/default.rb

@@ -0,0 +1,15 @@
+#
+# Cookbook:: golang
+# Attribute:: default
+#
+
+default['golang']['scm'] = true
+default['golang']['scm_packages'] = value_for_platform(
+  'centos' => { '>= 8' => %w(git mercurial) },
+  'default' => %w(git mercurial bzr)
+)
+
+default['golang']['install_dir'] = '/usr/local'
+default['golang']['gopath'] = '/opt/go'
+default['golang']['gobin'] = '/opt/go/bin'
+default['golang']['packages'] = []