class SyntaxTree::CLI::ConfigFile

it exists in the current working directory.
When invoking the CLI, we will read this config file and then parse it if
–print-width=100
–plugins=plugin/single_quote
argument, as in:
arguments to the CLI. Each line of the config file should be a new
We allow a minimal configuration file to act as additional command line

def arguments 

def arguments
  exists? ? File.readlines(filepath, chomp: true) : []
end

def exists? 

def exists?
  File.readable?(filepath)
end

def initialize 

def initialize
  @filepath = File.join(Dir.pwd, FILENAME)
end