feat(cli): add project and resource generator with executable

bin/prism

@@ -0,0 +1,11 @@
+#!/usr/bin/env ruby
+
+$LOAD_PATH.unshift(File.expand_path('../lib', __dir__))
+require 'prism'
+
+begin
+  Prism::Cli.new.run(ARGV)
+rescue Prism::Cli::UsageError => e
+  warn "error: #{e.message}"
+  exit 1
+end