Rename uplot to youplot

lib/youplot.rb

@@ -0,0 +1,10 @@
+# frozen_string_literal: true
+
+require 'unicode_plot'
+require 'youplot/version'
+require 'youplot/preprocessing'
+require 'youplot/plot'
+require 'youplot/command'
+
+module YouPlot
+end