feat(thirdparty): Introduce abseil (#1675)

Introduce abseil as thridparty for using abseil_strings method.
kms key manager client need to use Abseil_strings some methods in following patches.

thirdparty/CMakeLists.txt

@@ -409,3 +409,12 @@ ExternalProject_Add(http-parser
         INSTALL_COMMAND cp -R http_parser.h ${TP_OUTPUT}/include/nodejs/http_parser.h
         BUILD_IN_SOURCE 1
         )
+
+ExternalProject_Add(abseil
+        URL ${OSS_URL_PREFIX}/abseil-20230802.1.zip
+        https://github.com/abseil/abseil-cpp/archive/refs/tags/20230802.1.zip
+        URL_MD5 5c6193dbc82834f8e762c6a28c9cc615
+        CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${TP_OUTPUT}
+        -DABSL_FIND_GOOGLETEST=OFF
+        -DCMAKE_CXX_STANDARD=14
+        )