pull in rex-socket gem

pull rex-socket gem in as a dep

MS-1715

Gemfile.lock

@@ -42,6 +42,7 @@ PATH
       rex-powershell
       rex-random_identifier
       rex-registry
+      rex-socket
       rex-struct2
       rex-text
       rex-zip
@@ -250,6 +251,8 @@ GEM
     rex-random_identifier (0.1.0)
       rex-text
     rex-registry (0.1.0)
+    rex-socket (0.1.0)
+      rex-core
     rex-struct2 (0.1.0)
     rex-text (0.2.1)
     rex-zip (0.1.0)

metasploit-framework.gemspec

@@ -135,7 +135,7 @@ Gem::Specification.new do |spec|
   # Library for parsing and manipulating executable binaries
   spec.add_runtime_dependency 'rex-bin_tools'
   # Rex Socket Abstraction Layer
-  #spec.add_runtime_dependency 'rex-socket'
+  spec.add_runtime_dependency 'rex-socket'
 
   # rb-readline doesn't work with Ruby Installer due to error with Fiddle:
   #   NoMethodError undefined method `dlopen' for Fiddle:Module