operator+

Creates and returns a new accessor with its offset changed by rhs

template <typename overloadDependantT, typename >
accessor<elemT, 1, kMode, kTarget, access::placeholder::true_t> operator+(int rhs) const

1. Creates and returns a new accessor with its offset changed by rhs
   Parameters:
   • int rhs : the offset to add to the current accessor's offset in the new
   Returns: A new accessor with its get_offset()[0] equal to