validation/aggregating/pipeline/aggregating_validations_pipeline.odg: show that the staging table(s) are denormalized before running the input queries on them. clarified that what is compared are the input and output query results, not the queries themselves.

schemas/vegbien.sql: _specimens_10_count_number_of_records_by_institution: ran through pipeline

validation/aggregating/specimens/qualitative_validations_specimens.sql: removed `public.` prefix to avoid cluttering up the SQL

bugfix: schemas/vegbien.sql, validation/aggregating/specimens/qualitative_validations_specimens.sql: _specimens_10_count_number_of_records_by_institution: need to dereference specimenreplicate.duplicate_institutions_sourcelist_id to the corresponding sourcelist.name

schemas/vegbien.sql: public_validations._specimens_*: added comments from validation/aggregating/specimens/qualitative_validations_specimens.sql

validation/aggregating/specimens/qualitative_validations_specimens.sql: synced to schemas/vegbien.sql so that it can be diffed with it to sync qualitative_validations_specimens.sql to the DB

lib/sql_gen.py: map_expr(): documented that unlike bin/repl SQL identifier handling, this does simplify the resulting expression

lib/sql_gen.py: map_expr(): documented that this is a special case of bin/repl SQL identifier handling which does not handle entire source files

bin/repl: match as whole-word text (like SQL identifier): documented that this is a generalization of lib/sql_gen.py map_expr() to work on entire source files

bin/repl, lib/sql_gen.py Expression transforming: documented that this can also be done in Postgres with expression substitution (wiki.vegpath.org/Postgres_queries#expression-substitution)