Revert "rename eos directoy to eosio for net_plugin"

This reverts commit 0b731064. To make merging from master easier.

plugins/net_plugin/net_plugin.cpp

@@ -4,8 +4,8 @@
  */
 #include <eosio/chain/types.hpp>
 
-#include <eosio/net_plugin/net_plugin.hpp>
-#include <eosio/net_plugin/protocol.hpp>
+#include <eos/net_plugin/net_plugin.hpp>
+#include <eos/net_plugin/protocol.hpp>
 #include <eosio/chain/chain_controller.hpp>
 #include <eosio/chain/exceptions.hpp>
 #include <eosio/chain/block.hpp>

programs/eosiod/main.cpp

@@ -8,7 +8,7 @@
 #include <eosio/chain_plugin/chain_plugin.hpp>
 #include <eosio/http_plugin/http_plugin.hpp>
 #include <eosio/chain_api_plugin/chain_api_plugin.hpp>
-#include <eosio/net_plugin/net_plugin.hpp>
+#include <eos/net_plugin/net_plugin.hpp>
 //#include <eosio/account_history_plugin/account_history_plugin.hpp>
 //#include <eosio/account_history_api_plugin/account_history_api_plugin.hpp>
 #include <eosio/wallet_api_plugin/wallet_api_plugin.hpp>