Removed unused SPDY code/files; SSL define fix

SPDY was deprecated in favour of HTTP/2 in all major browsers in 2021.
I doubt a Blue server, a WebSocket-only HTTP server that only serves a single html page to browsers, will have use of HTTP/2 anyway, as it's a multiple-response-file system.

Also moved the deps folder out of src folder in the vcxproj files, since it wasn't in there on filesystem.

ENABLE_SSL was undefined on Unix config header; re-defined it and removed from vcxproj.
There was one server.c section it was not define-guarding; added it there.
Android and iOS do not come with system config files for openssl - so I will have to gather the correct openssl files and libraries for them. Fun.

Author: SortaCore

Lacewing/src/unix/android config.h

@@ -1,6 +1,5 @@
 #define ENABLE_CXX
-//#define ENABLE_SPDY
-//#define ENABLE_SSL
+#define ENABLE_SSL
 #define ENABLE_THREADS
 
 #define USE_EPOLL

Lacewing/src/unix/ios config.h

@@ -1,6 +1,5 @@
 #define ENABLE_CXX
-//#define ENABLE_SPDY
-//#define ENABLE_SSL
+#define ENABLE_SSL
 #define ENABLE_THREADS
 
 //#define USE_EPOLL

Lacewing/src/unix/server.c

@@ -171,8 +171,10 @@ void lw_server_delete (lw_server ctx)
 
 	lw_server_unhost (ctx);
 
+#ifdef ENABLE_SSL
 	if (ctx->ssl_context)
 		SSL_CTX_free(ctx->ssl_context);
+#endif
 
 	free (ctx);
 }

Lacewing/src/unix/unix config.h

@@ -1,6 +1,5 @@
 #define ENABLE_CXX
-//#define ENABLE_SPDY
-//#define ENABLE_SSL
+#define ENABLE_SSL
 #define ENABLE_THREADS
 
 #define USE_EPOLL

Lacewing/src/webserver/common.h

@@ -189,8 +189,3 @@ struct _lwp_ws_client
 };
 
 #include "http/http.h"
-
-#ifdef ENABLE_SPDY
-	#include "spdy/spdy.h"
-#endif
-

Lacewing/src/webserver/http/http-client.c

@@ -266,7 +266,7 @@ void client_respond (lwp_ws_client client, lw_ws_req request)
 	lwp_ws_httpclient ctx = (lwp_ws_httpclient) client;
 
 	/* The request parameter is redundant here, because HTTP only ever has one
-	* request object per client (unlike SPDY).  Sanity check...
+	* request object per client (unlike now-deprecated SPDY).  Sanity check...
 	*/
 
 	assert (request == ctx->request);

Lacewing/src/webserver/request.c

@@ -465,7 +465,8 @@ void lwp_ws_req_respond (lw_ws_req ctx)
 {
 	assert (!ctx->responded);
 
-	/* Respond may delete us w/ SPDY blah blah */
+	/* James note: Respond may delete us w/ SPDY blah blah
+	   Phi note: SPDY was deprecated in favour of HTTP/2 in 2021, and so removed from liblacewing */
 
 	ctx->client->respond (ctx->client, ctx);
 }