Preapre codebase for FileRequest compiletime improvements (#6192)

* Preapre codebase for FileRequest compiletime improvements

This is preparing grounds for the next PR that will contain the 'meat'
of the changes.

Signed-off-by: nemerle <96597+nemerle@users.noreply.github.com>

* Remove spurious newline.

Signed-off-by: nemerle <96597+nemerle@users.noreply.github.com>

Gems/PhysX/Code/Source/System/PhysXSystem.h

@@ -84,7 +84,7 @@ namespace PhysX
     private:
         //! Initializes the PhysX SDK.
         //! This sets up the PhysX Foundation, Cooking, and other PhysX sub-systems.
-        //! @param cookingParams The cooking params to use when setting up PhysX cooking interface. 
+        //! @param cookingParams The cooking params to use when setting up PhysX cooking interface.
         void InitializePhysXSdk(const physx::PxCookingParams& cookingParams);
         void ShutdownPhysXSdk();