Adds ability to load post modules in msfcli

This is mainly important for normal load testing. It'd be unusual to
actually want to use this functionality with msfcli since post modules
already need established sessions in order to do something.

[SeeRM #8719]

msfcli

@@ -312,6 +312,8 @@ class Msfcli
       modules[:module] = @framework.exploits.create($1)
     elsif module_name =~ /auxiliary\/(.*)/
       modules[:module] = @framework.auxiliary.create($1)
+    elsif module_name =~ /post\/(.*)/
+      modules[:module] = @framework.post.create($1)
     else
       modules[:module] = @framework.exploits.create(module_name)
       if modules[:module].nil?

spec/msfcli_spec.rb

@@ -222,6 +222,37 @@ def get_stdout(&block)
     end
 
     context ".init_modules" do
+
+      it "should inititalize an exploit module" do
+        args = 'exploit/windows/smb/psexec S'
+        m = ''
+        stdout = get_stdout {
+          cli = Msfcli.new(args.split(' '))
+          m = cli.init_modules
+        }
+        m[:module].class.to_s.should start_with("Msf::Modules::Mod")
+      end
+
+      it "should inititalize an auxiliary module" do
+        args = 'auxiliary/server/browser_autopwn S'
+        m = ''
+        stdout = get_stdout {
+          cli = Msfcli.new(args.split(' '))
+          m = cli.init_modules
+        }
+        m[:module].class.to_s.should start_with("Msf::Modules::Mod")
+      end
+
+      it "should inititalize a post module" do
+        args = 'post/windows/gather/credentials/gpp S'
+        m = ''
+        stdout = get_stdout {
+          cli = Msfcli.new(args.split(' '))
+          m = cli.init_modules
+        }
+        m[:module].class.to_s.should start_with("Msf::Modules::Mod")
+      end
+
       it "should have multi/handler module initialized" do
         args = "multi/handler payload=windows/meterpreter/reverse_tcp lhost=127.0.0.1 E"
         m    = ''
@@ -384,4 +415,4 @@ def get_stdout(&block)
     end
 
   end
-end
+end