Enable Clang Tidy

Summary:
X-link: https://github.com/facebook/react-native/pull/43299

Add the React Clang Tidy config to Yoga, run the auto fixes (with some mechanical manual tweaks). Notably, the automatic changes to the infra for generating a Yoga tree from JSON capture make it 70% faster.

Before:
{F1463947076}

After:
{F1463946802}

This also cleans up all the no-op shallow const parameters in headers.

{F1463943386}

Not all checks are available in all environments, but that is okay, as Clang Tidy will gracefully skip them.

Changelog: [Internal]

Differential Revision: D54461054

java/jni/yogajni.cpp

@@ -10,8 +10,8 @@
 
 using namespace facebook::yoga;
 
-jint JNI_OnLoad(JavaVM* vm, void*) {
-  JNIEnv* env;
+jint JNI_OnLoad(JavaVM* vm, void* /*unused*/) {
+  JNIEnv* env = nullptr;
   jint ret = vanillajni::ensureInitialized(&env, vm);
   YGJNIVanilla::registerNatives(env);
   return ret;