Ecospace scenarios take too long to save

[jeroens]

Right now, map info is stored in a row for each cell. Saving this information takes too long - to the point of becoming unusable.

We may have to revert to storing maps as MEMO fields of some kind.

[jeroens]

Ok, dunnit. Maps are saved to strings with a tad of smartness:

• Maps are stored as strings, where:
  • cell values are formatted using en-US thousand separators (where applicable);
  • columns are separated by commas;
  • rows are separated by semi-columns;
  • and empty rows (rows without non-zero data) are saved as a single semi-colon.
• Depth map saves at full resolution with an entry for each cell;
• Every other map only saves either land cell values (for ports) or water cell values (all other layers);
• Habitat, region and MPA maps are saved with their habitat, region or MPA. This opens the potential for overlapping habitats, regions and MPAs.