Fix a bunch of warnings

using the list of warnings from here:
https://github.com/lefticus/cppbestpractices/blob/e73393f25a85f83fed7399d8b65cb117d00b2231/02-Use_the_Tools_Available.md#L100

Seems like a good place to start, and would improve things a bit
type-wise.  This patchset attempts to correct all the issues in one
shot.

Tested:
It builds.  Will test various subsystems that have been touched

Signed-off-by: Ed Tanous <ed.tanous@intel.com>
Change-Id: I588c26440e5a97f718a0f0ea74cc84107d53aa1e
diff --git a/include/obmc_console.hpp b/include/obmc_console.hpp
index ca723d3..25f3b39 100644
--- a/include/obmc_console.hpp
+++ b/include/obmc_console.hpp
@@ -44,7 +44,7 @@
 
             if (ec == boost::asio::error::eof)
             {
-                for (auto session : sessions)
+                for (crow::websocket::Connection* session : sessions)
                 {
                     session->close("Error in reading to host port");
                 }
@@ -70,14 +70,14 @@
             {
                 BMCWEB_LOG_ERROR << "Couldn't read from host serial port: "
                                  << ec;
-                for (auto session : sessions)
+                for (crow::websocket::Connection* session : sessions)
                 {
                     session->close("Error in connecting to host port");
                 }
                 return;
             }
             std::string_view payload(outputBuffer.data(), bytesRead);
-            for (auto session : sessions)
+            for (crow::websocket::Connection* session : sessions)
             {
                 session->sendBinary(payload);
             }
@@ -90,7 +90,7 @@
     if (ec)
     {
         BMCWEB_LOG_ERROR << "Couldn't connect to host serial port: " << ec;
-        for (auto session : sessions)
+        for (crow::websocket::Connection* session : sessions)
         {
             session->close("Error in connecting to host port");
         }