begin refactor of "Info" modules into a single discordinfo module.

lib/discordinfo.ex

@@ -0,0 +1,29 @@
+defmodule Discordirc.DiscordInfo do
+  @moduledoc """
+  helper functions for discord text things
+  """
+  alias Nostrum.Api
+
+  def get_nick_by_id(guild_id, id) do
+    {:ok, user} = Api.get_user(id)
+    {:ok, member} = Api.get_guild_member(guild_id, id)
+    member.nick
+  end
+  
+  def get_username_by_id(id) do
+    {:ok, %{username: u, discriminator: d}} = Api.get_user(id)
+    "#{u}##{d}"
+  end
+  def get_channel_name_by_id(id) do
+  {:ok, %{name: c}} = Api.get_channel(id)
+  c
+  end
+  def get_role_name_by_id(guild_id, id) do
+    {:ok, roles} = Api.get_guild_roles(guild_id)
+
+    roles
+    |> Enum.filter(fn (%{id: i}) -> i == id end)
+    |> List.first
+    |> Map.get(:name)
+  end	
+end