GRAPHICS: Add a function to reset the CommandBucket to a fresh state
GRAPHICS: Add a function to reset the CommandBucket to a fresh state

It doesn't actually delete anything. Rather, it just resets the m_nextFreeCommand
offset and resets the LinearAllocator

RichieSams/thehalflingproject,RichieSams/thehalflingproject,RichieSams/thehalflingproject