Attempt at a bug fix to read backslashes as forward slashes in local fetcher

lib/fetchers/local.rb

@@ -15,6 +15,9 @@ module Fetchers
       # Support "urls" in the form of file://
       if target.start_with?('file://')
         target = target.gsub(%r{^file://}, '')
+      else
+        # support for windows paths
+        target.tr!('\\', '/')
       end
 
       if !File.exist?(target)

test/unit/fetchers/fetchers_test.rb

@@ -52,6 +52,8 @@ describe Inspec::Plugins::RelFetcher do
     # ignored by all tar streaming tools, its not extracted by GNU tar since 1.14
     %w{/pax_global_header /a/b}  => %w{b},
     %w{pax_global_header a/b}    => %w{b},
+    # windows path
+    %w{.\\path\\}                => %w{./path/}
   }.each do |ins, outs|
     describe 'empty profile' do
       let(:in_files) { ins }