update toxcore, includes ngc mem savings

Merge commit '261d2e53b7a513de7eb35e022fe3b2ae4efa835f'

external/toxcore/c-toxcore/azure-pipelines.yml

@@ -1,15 +1,25 @@
 pool:
   vmImage: "windows-2019"
 jobs:
-  - job: "windows_msvc_conan"
+  - job: "vcpkg"
     strategy:
       matrix:
         static:
-          conan.shared: "False"
+          ENABLE_STATIC: "ON"
+          ENABLE_SHARED: "OFF"
         shared:
-          conan.shared: "True"
+          ENABLE_STATIC: "OFF"
+          ENABLE_SHARED: "ON"
     steps:
-      - bash: python -m pip install conan==1.59.0
+      - task: Cache@2
+        inputs:
+          key: "vcpkg"
+          path: "_build/vcpkg_installed"
       - bash: git submodule update --init --recursive
-      - bash: conan install -if _build -o with_tests=True -o shared=$(conan.shared) .
-      - bash: CONAN_CPU_COUNT=50 CTEST_OUTPUT_ON_FAILURE=1 conan build -bf _build -if _build . || true
+      - bash: cmake --preset windows-default -DENABLE_STATIC=$(ENABLE_STATIC) -DENABLE_SHARED=$(ENABLE_SHARED)
+        env:
+          VCPKG_ROOT: "C:/vcpkg"
+          VCPKG_DEFAULT_TRIPLET: "x64-windows"
+      - bash: cmake --build _build --config Release
+      - bash: ctest --preset windows-default -C Release --parallel 50 ||
+          ctest --preset windows-default -C Release --rerun-failed --output-on-failure