New Codebase

Introduces completely new codebase:

System   data,  HDD   type   reference  data   and
configuration data is now stored in JSON files.

Modularizes  codebase, with  separate modules  for
statistics,   output,   string  operations,   JSON
processing and rank calculations.

Fixes a few formatting bugs.

 On branch master
 Your branch is up-to-date with 'origin/master'.

 Changes to be committed:
	new file:   Ltt/Display.pm
	new file:   Ltt/Json.pm
	new file:   Ltt/Ranking.pm
	new file:   Ltt/Statistics.pm
	new file:   Ltt/Strings.pm
	new file:   json/constants.json
	new file:   json/hdd_types.json
	new file:   json/systems.json
	new file:   ltt-rankings.pl