Fix some errors found by fuzzers (#2078)

Fix compilation on Windows.
"dirent.h" file has been taken from https://github.com/tronkko/dirent/

Fix Python bindings

Fix some warnings with x86_64-w64-mingw32-gcc:
```
protocols/dns.c: In function ‘ndpi_search_dns’:
protocols/dns.c:775:41: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast]
  775 |       unsigned long first_element_len = (unsigned long)dot - (unsigned long)_hostname;
      |                                         ^
protocols/dns.c:775:62: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast]
  775 |       unsigned long first_element_len = (unsigned long)dot - (unsigned long)_hostname;
      |
```
```
In file included from ndpi_bitmap64.c:31:
third_party/include/binaryfusefilter.h: In function ‘binary_fuse8_hash’:
third_party/include/binaryfusefilter.h:160:32: error: left shift count >= width of type [-Werror=shift-count-overflow]
  160 |     uint64_t hh = hash & ((1UL << 36) - 1);
```
```
In function ‘ndpi_match_custom_category’,
    inlined from ‘ndpi_fill_protocol_category.part.0’ at ndpi_main.c:7056:16:
ndpi_main.c:3419:3: error: ‘strncpy’ specified bound depends on the length of the source argument [-Werror=stringop-overflow=]
 3419 |   strncpy(buf, name, name_len);
```

1 files changed, 13 insertions, 13 deletions

diff --git a/src/include/ndpi_typedefs.h b/src/include/ndpi_typedefs.h
index 47e2b9897..d440a9e74 100644
--- a/src/include/ndpi_typedefs.h
+++ b/src/include/ndpi_typedefs.h
@@ -625,6 +625,19 @@ struct ndpi_flow_input_info {
   unsigned char seen_flow_beginning;
 };
 
+/* Save memory limiting the key to 56 bit */
+//#define SAVE_BINARY_BITMAP_MEMORY
+
+PACK_ON
+struct ndpi_binary_bitmap_entry {
+#ifdef SAVE_BINARY_BITMAP_MEMORY
+  u_int64_t value:56, category:8;
+#else
+  u_int64_t value;
+  u_int8_t category;
+#endif
+} PACK_OFF;
+
 /* ******************* ********************* ****************** */
 /* ************************************************************ */
 
@@ -1180,19 +1193,6 @@ typedef void ndpi_bitmap;
 typedef void ndpi_bitmap64;
 typedef void ndpi_bitmap_iterator;
 typedef void ndpi_filter;
-
-/* Save memory limiting the key to 56 bit */
-//#define SAVE_BINARY_BITMAP_MEMORY
-
-PACK_ON
-struct ndpi_binary_bitmap_entry {
-#ifdef SAVE_BINARY_BITMAP_MEMORY
-  u_int64_t value:56, category:8;
-#else
-  u_int64_t value;
-  u_int8_t category;
-#endif
-} PACK_OFF;
     
 typedef struct {
   u_int32_t num_allocated_entries, num_used_entries;