Add support for building curl_cffi wheels on WoA (#603)

Author: Greenie0701

libs.json

@@ -17,6 +17,15 @@
         "so_name": "libcurl.dll",
         "so_arch": "i686"
     },
+    {
+        "system": "Windows",
+        "machine": "ARM64",
+        "pointer_size": 64,
+        "libdir": "./libarm64",
+        "sysname": "win32",
+        "so_name": "libcurl.dll",
+        "so_arch": "arm64"
+    },
     {
         "system": "Darwin",
         "machine": "x86_64",

scripts/build.py

@@ -154,6 +154,7 @@ def get_curl_libraries():
     include_dirs=[
         str(root_dir / "include"),
         str(root_dir / "ffi"),
+        str(Path(arch["libdir"]) / "include"),
     ],
     sources=[
         str(root_dir / "ffi/shim.c"),