Add glide package

packages/glide.rb

+require 'package'
+
+class Glide < Package
+  description 'Package Management for Golang'
+  homepage 'https://glide.sh/'
+  version '0.12.3'
+  case ARCH
+  when 'aarch64', 'armv7l'
+    source_url 'https://github.com/Masterminds/glide/releases/download/v0.12.3/glide-v0.12.3-linux-armv7.tar.gz'
+    source_sha256 'cce4242c11d084f99087caaa0a42c8476a81db0cbcc83932f5821e1f29b7edb2'
+  when 'i686'
+    source_url 'https://github.com/Masterminds/glide/releases/download/v0.12.3/glide-v0.12.3-linux-386.tar.gz'
+    source_sha256 '1f6fbcd84213c7c11a778ecd36d326d012f1a0555e6c0d6bf572dac7b80e8622'
+  when 'x86_64'
+    source_url 'https://github.com/Masterminds/glide/releases/download/v0.12.3/glide-v0.12.3-linux-amd64.tar.gz'
+    source_sha256 '0e2be5e863464610ebc420443ccfab15cdfdf1c4ab63b5eb25d1216900a75109'
+  end
+
+  depends_on 'go'
+
+  def self.install
+    system "mkdir -p #{CREW_DEST_PREFIX}/bin"
+    system "cp glide #{CREW_DEST_PREFIX}/bin"
+  end
+end