Fix SMSG_POWER_UPDATE, thanks @Zakamurite for noticing.

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Автор: LordJZ


<pre>m src/game/DBCStores.cpp
m src/game/DBCStores.h
m src/game/SharedDefines.h
m src/game/Unit.cpp
m src/game/Unit.h
</pre>
<pre style='white-space:pre-wrap;width:81ex'>Fix SMSG_POWER_UPDATE, thanks @Zakamurite for noticing.</pre>


Подробнее... (https://github.com/mangos-three/server/commit/8fb84040efdd3e80b3324cc2887aa75e97cf287f)