shape recognition with piecewise rows

[kostmo]

Prerequisites

• refactor in preparation for new structure recognizer #2209
• update schema docs #2207

Overview

Certain hacks (e.g. #2115) were employed to better handle "transparency" when recognizing shapes. However, these approaches are still limited in capability.

The "right" way to use Aho-Corasick with transparency is to break rows up into the contiguous segments separated by transparent cells. The individual segments recognized by the automaton can then be matched against their expected position.

scripts/play.sh --scenario scenarios/Testing/1575-structure-recognizer/2201-piecewise-lines.yaml --autoplay

To view the internal shape recognition logs:

http://localhost:5357/recognize/log

Other notable changes

• Use Writer monad for logging
• Remove all "entity masking" logic
• Improve documentation