ggml : portability fixes for VS 2017 (#12150)

* Add include files for std::min/max and std::toupper/tolower

* win32: move _USE_MATH_DEFINES before includes to ensure M_PI is defined

* Use GGML_RESTRICT instead of "restrict" keyword everywhere, and use "__restrict" in MSVC plain C mode

* win32: only use __restrict in MSVC if C11/C17 support is not enabled

---------

Co-authored-by: Marcus Groeber <Marcus.Groeber@cerence.com>

examples/tts/tts.cpp

@@ -1,3 +1,5 @@
+#define _USE_MATH_DEFINES // For M_PI on MSVC
+
 #include "arg.h"
 #include "common.h"
 #include "sampling.h"
@@ -5,8 +7,6 @@
 #include "llama.h"
 #include "json.hpp"
 
-#define _USE_MATH_DEFINES // For M_PI on MSVC
-
 #include <algorithm>
 #include <cmath>
 #include <cstdio>