Implement resolving dependencies

packages/gmp.rb

@@ -0,0 +1,11 @@
+require './lib/package'
+
+class Gmp < Package
+  version "5.1.2"
+  binary_url ({
+    i686: "https://dl.dropboxusercontent.com/s/9cwila1kaomsyl2/gmp-5.1.2-chromeos-i686.tar.gz?token_hash=AAHO9VxBpvXU2GPWBwimsp4hL8DADIItfNnIaFbfcyynMg&dl=1"
+  })
+  binary_sha1 ({
+    i686: "b03b9508463588bfe9d09303c0725068cddd8810"
+  })
+end