build: make use of 76 lib/*.h renamed files

76 private header files renamed to use our standard naming scheme.

This change affects 322 files in libcurl's source tree.

tests/libtest/libntlmconnect.c

@@ -27,8 +27,8 @@
 #include <assert.h>
 
 #include "testutil.h"
-#include "warnless.h"
-#include "memdebug.h"
+#include "curl_warnless.h"
+#include "curl_memdebug.h"
 
 #define TEST_HANG_TIMEOUT 5 * 1000
 #define MAX_EASY_HANDLES 3