Fix two Wreorder clang warnings

apps/openmw/mwphysics/physicssystem.cpp

@@ -991,13 +991,13 @@ namespace MWPhysics
         , mHalfExtentsZ(actor.getHalfExtents().z())
         , mOldHeight(0)
         , mFallHeight(0)
+        , mStuckFrames(0)
         , mFlying(MWBase::Environment::get().getWorld()->isFlying(actor.getPtr()))
         , mWasOnGround(actor.getOnGround())
         , mIsAquatic(actor.getPtr().getClass().isPureWaterCreature(actor.getPtr()))
         , mWaterCollision(waterCollision)
         , mSkipCollisionDetection(actor.skipCollisions() || !actor.getCollisionMode())
         , mNeedLand(false)
-        , mStuckFrames(0)
     {
     }
 

components/resource/scenemanager.cpp

@@ -228,6 +228,7 @@ namespace Resource
         , mApplyLightingToEnvMaps(false)
         , mLightingMethod(SceneUtil::LightingMethod::FFP)
         , mConvertAlphaTestToAlphaToCoverage(false)
+        , mDepthFormat(0)
         , mInstanceCache(new MultiObjectCache)
         , mSharedStateManager(new SharedStateManager)
         , mImageManager(imageManager)
@@ -237,7 +238,6 @@ namespace Resource
         , mMaxAnisotropy(1)
         , mUnRefImageDataAfterApply(false)
         , mParticleSystemMask(~0u)
-        , mDepthFormat(0)
     {
     }