Add makeup_syntect for solidity syntax highlighting (#191)

* Add makeup_syntect for solidity syntax highlighting

* Fix coverage issue

lib/ethers/utils.ex

@@ -564,6 +564,11 @@ defmodule Ethers.Utils do
 
   @doc """
   Removes leading zeros from a binary.
+
+  ## Examples
+
+      iex> Ethers.Utils.remove_leading_zeros(<<0, 0, 1, 2, 3>>)
+      <<1, 2, 3>>
   """
   @spec remove_leading_zeros(binary()) :: binary()
   def remove_leading_zeros(<<0, rest::binary>>), do: remove_leading_zeros(rest)

mix.exs

@@ -115,6 +115,7 @@ defmodule Ethers.MixProject do
       {:excoveralls, "~> 0.10", only: :test},
       {:idna, "~> 6.1"},
       {:jason, "~> 1.4"},
+      {:makeup_syntect, "~> 0.1", only: :dev, runtime: false},
       {:plug, ">= 1.0.0", only: :test},
       {:req, "~> 0.5"}
     ]

mix.lock

@@ -20,6 +20,7 @@
   "makeup": {:hex, :makeup, "1.2.1", "e90ac1c65589ef354378def3ba19d401e739ee7ee06fb47f94c687016e3713d1", [:mix], [{:nimble_parsec, "~> 1.4", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "d36484867b0bae0fea568d10131197a4c2e47056a6fbe84922bf6ba71c8d17ce"},
   "makeup_elixir": {:hex, :makeup_elixir, "1.0.1", "e928a4f984e795e41e3abd27bfc09f51db16ab8ba1aebdba2b3a575437efafc2", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}, {:nimble_parsec, "~> 1.2.3 or ~> 1.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "7284900d412a3e5cfd97fdaed4f5ed389b8f2b4cb49efc0eb3bd10e2febf9507"},
   "makeup_erlang": {:hex, :makeup_erlang, "1.0.2", "03e1804074b3aa64d5fad7aa64601ed0fb395337b982d9bcf04029d68d51b6a7", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "af33ff7ef368d5893e4a267933e7744e46ce3cf1f61e2dccf53a111ed3aa3727"},
+  "makeup_syntect": {:hex, :makeup_syntect, "0.1.3", "ae2c3437f479ea50d08d794acaf02a2f3a8c338dd1f757f6b237c42eb27fcde1", [:mix], [{:makeup, "~> 1.2", [hex: :makeup, repo: "hexpm", optional: false]}, {:rustler, "~> 0.36.1", [hex: :rustler, repo: "hexpm", optional: true]}, {:rustler_precompiled, "~> 0.8.2", [hex: :rustler_precompiled, repo: "hexpm", optional: false]}], "hexpm", "a27bd3bd8f7b87465d110295a33ed1022202bea78701bd2bbeadfb45d690cdbf"},
   "mime": {:hex, :mime, "2.0.6", "8f18486773d9b15f95f4f4f1e39b710045fa1de891fada4516559967276e4dc2", [:mix], [], "hexpm", "c9945363a6b26d747389aac3643f8e0e09d30499a138ad64fe8fd1d13d9b153e"},
   "mint": {:hex, :mint, "1.6.2", "af6d97a4051eee4f05b5500671d47c3a67dac7386045d87a904126fd4bbcea2e", [:mix], [{:castore, "~> 0.1.0 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}, {:hpax, "~> 0.1.1 or ~> 0.2.0 or ~> 1.0", [hex: :hpax, repo: "hexpm", optional: false]}], "hexpm", "5ee441dffc1892f1ae59127f74afe8fd82fda6587794278d924e4d90ea3d63f9"},
   "nimble_options": {:hex, :nimble_options, "1.1.1", "e3a492d54d85fc3fd7c5baf411d9d2852922f66e69476317787a7b2bb000a61b", [:mix], [], "hexpm", "821b2470ca9442c4b6984882fe9bb0389371b8ddec4d45a9504f00a66f650b44"},