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>

src/llama-chat.cpp

@@ -4,6 +4,7 @@
 
 #include <map>
 #include <sstream>
+#include <algorithm>
 
 #if __cplusplus >= 202000L
     #define LU8(x) (const char*)(u8##x)

src/llama-kv-cache.h

@@ -6,6 +6,7 @@
 
 #include <set>
 #include <vector>
+#include <algorithm>
 
 struct llama_kv_cell {
     llama_pos pos   = -1;

src/llama-mmap.cpp

@@ -8,6 +8,7 @@
 #include <climits>
 #include <stdexcept>
 #include <cerrno>
+#include <algorithm>
 
 #ifdef __has_include
     #if __has_include(<unistd.h>)

src/llama-vocab.cpp

@@ -16,6 +16,7 @@
 #include <queue>
 #include <set>
 #include <unordered_map>
+#include <cctype>
 
 //
 // helpers