Online Tool for curve plotting and analyzation

@RalphLambrecht I added the feature you requested. The Analysis plot area now always shows film / dev combinations.

Website does now again host the most up to date version, implementing these new features:
1) New look
2) Ui bug fixes
3) Show all and Hide all curves buttons
4) An option to choose how Normal is defined in the Zonesystem table - you can choose between a Ci you define as normal or use the auto select of the tool that is based on your entered LER (Negative density range required for your Paper) and the dynamic flare model
5) Curves are now no longer stretched optically, Y and X axis are now displayed as the same interval
6) The new website analogplotter.com only houses this tool