create functions of Pelemay options

[zacky1972]

Would you implement to select whether CPU or GPU executes the code?

There are two functions: Pelemay.to_gpu/1 and Pelemay.to_cpu/1.

They are defined as follows:

defmodule Pelemay
  def to_gpu(list), do: list
  def to_cpu(list), do: list
end

In defpelemay, Pelemay.to_gpu/1 and Pelemay.to_cpu/1 will work as follows:

defpelemay do
  def func1(list) do
    list
    |> Enum.map(& &1 + 1) # this code will be run on CPU.
    |> Pelemay.to_gpu()
    |> Enum.map(& &1 * 2) # this code will be run on GPU.
    # the return value will be returned to CPU.
  end
  def func2(list) do
    list
    |> Enum.map(& &1 + 1) # this code will be run on CPU.
    |> Pelemay.to_gpu()
    |> Enum.map(& &1 * 2) # this code will be run on GPU.
    |> Pelemay.to_cpu()
    |> Enum.map(& &1 + 1) # this code will be run on CPU.
  end
end

This issue scope is only to create hooks.

The branch name is pelemay_options