Better Error Message Required For Import Failures

[IgnoredAmbience]

Current error messages from a full set of imports:

$ ./bplan.py *.gz
Unable to process 20140116_ReferenceData.gz:
Inconsistent REF counts, expected 1405, got 247
Unable to process 20160126_ReferenceData.gz:
Inconsistent REF counts, expected 1422, got 257
Unable to process Geography_20151213_to_20160514_from_20160126.txt.gz:
Inconsistent REF counts, expected 1422, got 257
Unable to process Geography_20161211_to_20171209_from_20170823.txt.gz:
Inconsistent TLD counts, expected 638, got 629

I suspect this is due to foreign key inconsistencies in the REF table. Need visibility of the sqlite errors.

[IgnoredAmbience]

This appears to be caused by a discrepancy between the record counts and the PIT record. ☹️

Additionally, foreign key consistency needs to be enabled by the application as a pragma (stupid sqlite):

PRAGMA foreign_keys=ON;

[IgnoredAmbience]

Rant complete: https://wiki.openraildata.com/index.php?title=Talk:BPLAN_Geography_Data