The main content of this commit is that the loading of restart files is
based on map of keys passed in from calling scope. This way the
selection of keywords to save and load is fully under control of calling
scope, but in addition there are many small refactorings:
- The EclipseWriter class and implementation has been renamed
EclipseIO.
- The loading and saving of restart files has been moved to file and
namespace RestartIO, which contains two loose functions load( ) and
save( ).
- The Summary() and RFT( ) data get their own copies of the data::Cells
vector.
- Removed some abstractions and wrrappers around C / ert
datastructures. Using ecl_file_view when loading restart files,
instead of bare ecl_file. Simplified opening of unified restart
files.
- Removed the ability to save restart keywords in double precision.
