Add libsqlite3 package

packages/libsqlite3.rb

+require 'package'
+
+class Libsqlite3 < Package
+  description 'SQLite is a software library that implements a self-contained, serverless, zero-configuration, transactional SQL database engine.'
+  homepage 'https://github.com/LuaDist/libsqlite3'
+  version '3.7.7.1'
+  source_url 'https://github.com/LuaDist/libsqlite3/archive/3.7.7.1.tar.gz'
+  source_sha1 '43a8eaad04a2220e9ede5764da8edba4003ad33a'
+
+  def self.build
+    system "./configure"
+    system "make"
+  end
+
+  def self.install
+    system "make", "DESTDIR=#{CREW_DEST_DIR}", "install"
+  end
+end