Restore echo/suppress_ga client and server for MSVC DLL

CMakeLists.txt

@@ -141,6 +141,8 @@ target_sources(telnetpp
         src/command.cpp
         src/element.cpp
         src/negotiation.cpp
+        src/options/echo/client.cpp
+        src/options/echo/server.cpp
         src/options/mccp/client.cpp
         src/options/mccp/codec.cpp
         src/options/mccp/server.cpp
@@ -151,6 +153,8 @@ target_sources(telnetpp
         src/options/naws/server.cpp
         src/options/new_environ/client.cpp
         src/options/new_environ/server.cpp
+        src/options/suppress_ga/client.cpp
+        src/options/suppress_ga/server.cpp
         src/options/terminal_type/client.cpp
         src/session.cpp
         src/subnegotiation.cpp

include/telnetpp/options/echo/client.hpp

@@ -16,10 +16,7 @@ class TELNETPP_EXPORT client : public telnetpp::options::basic_client<
                                    telnetpp::options::echo::detail::option>
 {
  public:
-  constexpr explicit client(telnetpp::session &sess) noexcept
-    : basic_client(sess)
-  {
-  }
+  explicit client(telnetpp::session &sess) noexcept;
 };
 
 }  // namespace telnetpp::options::echo

include/telnetpp/options/echo/server.hpp

@@ -16,10 +16,7 @@ class TELNETPP_EXPORT server : public telnetpp::options::basic_server<
                                    telnetpp::options::echo::detail::option>
 {
  public:
-  constexpr explicit server(telnetpp::session &sess) noexcept
-    : basic_server(sess)
-  {
-  }
+  explicit server(telnetpp::session &sess) noexcept;
 };
 
 }  // namespace telnetpp::options::echo

include/telnetpp/options/suppress_ga/client.hpp

@@ -18,10 +18,7 @@ class TELNETPP_EXPORT client
         telnetpp::options::suppress_ga::detail::option>
 {
  public:
-  constexpr explicit client(telnetpp::session &sess) noexcept
-    : basic_client(sess)
-  {
-  }
+  explicit client(telnetpp::session &sess) noexcept;
 };
 
 }  // namespace telnetpp::options::suppress_ga

include/telnetpp/options/suppress_ga/server.hpp

@@ -18,10 +18,7 @@ class TELNETPP_EXPORT server
         telnetpp::options::suppress_ga::detail::option>
 {
  public:
-  constexpr explicit server(telnetpp::session &sess) noexcept
-    : basic_server(sess)
-  {
-  }
+  explicit server(telnetpp::session &sess) noexcept;
 };
 
 }  // namespace telnetpp::options::suppress_ga

src/options/echo/client.cpp

@@ -0,0 +1,9 @@
+#include "telnetpp/options/echo/client.hpp"
+
+namespace telnetpp::options::echo {
+
+client::client(telnetpp::session &sess) noexcept : basic_client(sess)
+{
+}
+
+}  // namespace telnetpp::options::echo

src/options/echo/server.cpp

@@ -0,0 +1,9 @@
+#include "telnetpp/options/echo/server.hpp"
+
+namespace telnetpp::options::echo {
+
+server::server(telnetpp::session &sess) noexcept : basic_server(sess)
+{
+}
+
+}  // namespace telnetpp::options::echo

src/options/suppress_ga/client.cpp

@@ -0,0 +1,9 @@
+#include "telnetpp/options/suppress_ga/client.hpp"
+
+namespace telnetpp::options::suppress_ga {
+
+client::client(telnetpp::session &sess) noexcept : basic_client(sess)
+{
+}
+
+}  // namespace telnetpp::options::suppress_ga

src/options/suppress_ga/server.cpp

@@ -0,0 +1,9 @@
+#include "telnetpp/options/suppress_ga/server.hpp"
+
+namespace telnetpp::options::suppress_ga {
+
+server::server(telnetpp::session &sess) noexcept : basic_server(sess)
+{
+}
+
+}  // namespace telnetpp::options::suppress_ga