Add NetCDF reader

[opengeoscience]

Add NetCDF reader

[aashish24]

Rank 2

[jbeezley]

Options for this:

• Use the netcdf library I wrote a while back which only supports the NetCDF version 3 format and will probably need some finishing touches.
• Use emscripten to compile the C interface into javascript.

[aashish24]

I am in favor of option 1) emscripten is nice but the code it produces it hard to read.

[jbeezley]

Closing because this feature isn't viable. At best, we could only support version 3 files, which are more and more rare these days. With more experience, we are finding that anything but superficially small data needs to be served to the client in hierarchical tiles any way. As long as it is passed through the server for processing, it might as well be converted to a standard format using libnetcdf in the process.

[aashish24]

@jbeezley +1