Include tangent/binormal cache in savestates

This theoretically matters for RS2/RS3, although in practice these games reconfigure it each frame so it shouldn't matter for savestates.

Source/Core/Core/State.cpp

@@ -94,7 +94,7 @@ static size_t s_state_writes_in_queue;
 static std::condition_variable s_state_write_queue_is_empty;
 
 // Don't forget to increase this after doing changes on the savestate system
-constexpr u32 STATE_VERSION = 150;  // Last changed in PR 11124
+constexpr u32 STATE_VERSION = 151;  // Last changed in PR 11131
 
 // Maps savestate versions to Dolphin versions.
 // Versions after 42 don't need to be added to this list,

Source/Core/VideoCommon/VertexManagerBase.cpp

@@ -562,6 +562,8 @@ void VertexManagerBase::DoState(PointerWrap& p)
   }
 
   p.Do(m_zslope);
+  p.Do(VertexLoaderManager::tangent_cache);
+  p.Do(VertexLoaderManager::binormal_cache);
 }
 
 void VertexManagerBase::CalculateZSlope(NativeVertexFormat* format)