Add standalone executable for convert ugoira file

scripts/build_rapidjson.sh

@@ -0,0 +1,6 @@
+export PREFIX=`pwd`/clib
+mkdir -p cbuild && cd cbuild || exit 1
+git clone --depth 1 'https://github.com/Tencent/rapidjson' && cd rapidjson || exit 1
+mkdir -p build && cd build || exit 1
+cmake -DCMAKE_BUILD_TYPE=Release .. "-DCMAKE_INSTALL_PREFIX=$PREFIX" -DRAPIDJSON_BUILD_DOC=OFF -DRAPIDJSON_BUILD_EXAMPLES=OFF -DRAPIDJSON_BUILD_TESTS=OFF || exit 1
+make -j8 && make install || exit 1

scripts/build_win_rapidjson.bat

@@ -0,0 +1,25 @@
+@ECHO OFF
+SETLOCAL
+SET PREFIX=%CD%\clib
+SET PKG_CONFIG_DIR=%PREFIX%\lib\pkgconfig
+IF NOT EXIST cbuild (
+    MD cbuild || EXIT /B 1
+)
+CD cbuild || EXIT /B 1
+git clone --depth 1 "https://github.com/Tencent/rapidjson" || EXIT /B %ERRORLEVEL%
+CD rapidjson || EXIT /B 1
+IF NOT EXIST build (
+    MD build || EXIT /B 1
+)
+CD build || EXIT /B 1
+cmake ^
+    -G Ninja ^
+    -DCMAKE_PREFIX_PATH=%PREFIX% ^
+    -DCMAKE_BUILD_TYPE=Release ^
+    -DCMAKE_INSTALL_PREFIX=%PREFIX% ^
+    -DRAPIDJSON_BUILD_DOC=OFF ^
+    -DRAPIDJSON_BUILD_EXAMPLES=OFF ^
+    -DRAPIDJSON_BUILD_TESTS=OFF ^
+    ../ || EXIT /B %ERRORLEVEL%
+ninja && ninja install || ninja && ninja install || EXIT /B %ERRORLEVEL%
+ENDLOCAL