Automate regeneration of contributor disambiguation data

[audiomuze]

Currently disambiguated metadata lives independently of lists produced by string-grouper.

Enhance code to remove previously assigned false-positives from result set, avoiding rework and improving metadata cleanup outcomes.

[audiomuze]

The way to do this is to keep a master table of updates, with '0' indicating the record is not to be changed. The output table from string_grouper can then be processed against the master table, effectively deleting all matching records in the string_grouper table so a user needn't ever make the evaluation again. This effectively eliminates confirmed false positives from being reintroduced.