Theoric and Optimal production compute on zoomChart

[Gashmob]

1. Adding functions in js to compute theoric and optimal production of solar panel for a given date. The result is showed on the second graph (zoomChart).

2. Update database :

   • Delete localization and peak_power columns on *meters tables
   • Make name column unique on *meters tables
   • Adding table metersdata :

     metersdata ( 
     name varchar(256) primary key, 
     longitude float not null, 
     latitude float not null, 
     peak_power float not null, 
     azimuth float not null, 
     tilt float not null 
     )

   • Adding foreign key on *meters(name) references metersdata(name)