Add gzip package (#3098)

packages/gzip.rb

+require 'package'
+
+class Gzip < Package
+  description 'GNU Gzip is a popular data compression program originally written by Jean-loup Gailly for the GNU project.'
+  homepage 'https://www.gnu.org/software/gzip/'
+  version '1.10'
+  source_url 'https://ftpmirror.gnu.org/gzip/gzip-1.10.tar.xz'
+  source_sha256 '8425ccac99872d544d4310305f915f5ea81e04d0f437ef1a230dc9d1c819d7c0'
+
+  binary_url ({
+  })
+  binary_sha256 ({
+  })
+
+  def self.build
+    system "./configure",
+           "--prefix=#{CREW_PREFIX}"
+    system "make"
+  end
+
+  def self.install
+    system "make", "DESTDIR=#{CREW_DEST_DIR}", "install"
+  end
+
+  def self.check
+    system "make", "check"
+  end
+end