Integrate C++ view managers into RN OSS build system

Summary:
Customize gradle/buck to be able to build fabric C++ components files

changelog: [internal] internal

Reviewed By: cortinico, sammy-SC

Differential Revision: D39448416

fbshipit-source-id: 3beddf27082728e2316e483c2541c7405e4c57f7

ReactAndroid/src/main/jni/CMakeLists.txt

@@ -104,4 +104,3 @@ add_react_android_subdir(src/main/jni/react/fabric)
 add_react_android_subdir(src/main/jni/react/newarchdefaults)
 add_react_android_subdir(src/main/jni/react/hermes/reactexecutor)
 add_react_android_subdir(src/main/jni/react/hermes/instrumentation/)
-

ReactAndroid/src/main/jni/react/fabric/components/BUCK

@@ -32,12 +32,12 @@ rn_xplat_cxx_library(
         "-DLOG_TAG=\"ReactNative\"",
         "-DWITH_FBSYSTRACE=1",
     ],
+    soname = "libfabriccomponentsjni.$(ext)",
     tests = [":tests"],
     visibility = ["PUBLIC"],
     deps = [
         "//third-party/glog:glog",
         "//xplat/fbsystrace:fbsystrace",
-        # "//xplat/folly:headers_only",
         "//xplat/folly:memory",
         "//xplat/folly:molly",
         react_native_xplat_target("react/renderer/core:core"),

ReactAndroid/src/main/jni/react/fabric/components/CMakeLists.txt

@@ -0,0 +1,12 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under the MIT license found in the
+# LICENSE file in the root directory of this source tree.
+
+cmake_minimum_required(VERSION 3.13)
+set(CMAKE_VERBOSE_MAKEFILE on)
+
+add_compile_options(-fvisibility=hidden -fexceptions -frtti)
+
+file(GLOB fabriccomponentsjni_SRC CONFIGURE_DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/*.cpp)
+add_library(fabriccomponentsjni INTERFACE ${fabriccomponentsjni_SRC})