logger module added

lib/obsws/logger.rb

@@ -0,0 +1,11 @@
+require "logger"
+
+module OBSWS
+  module Logging
+    def logger
+      @logger = Logger.new($stdout, level: ENV.fetch("OBSWS_LOG_LEVEL", "WARN"))
+      @logger.progname = instance_of?(::Module) ? name : self.class.name
+      @logger
+    end
+  end
+end