validation/aggregating/**.sql output queries: use `SET join_collapse_limit = 1;` to match public_validations.rematerialize_out_view()

fix: schemas/vegbien.sql: public_validations.rematerialize_out_view(text, regclass): run with join_collapse_limit = 1 to fix query planner issues. this option has been tested on the queries that do not yet use the standard join sequence (plots #11,12,13,14,16,17,18), and all of these queries also work fine with join_collapse_limit = 1. (the standard join sequence is used to ensure both correctness of the query and compatibility with join_collapse_limit = 1, but in some cases is not needed for join_collapse_limit.)

validation/aggregating/specimens/qualitative_validations_specimens.sql: _specimens_12_distinct_collector_name_collect_num_date_w_count: turn off join_collapse_limit instead of enable_mergejoin/enable_hashjoin, because join_collapse_limit is something that we will eventually want to turn off for all queries, which would avoid this query needing special handling. (on the other hand, enable_mergejoin/enable_hashjoin may be necessary for some queries and we probably won't turn them off for all queries.)

bugfix: lib/runscripts/table.run: table_make_install(): need to ignore skip_table() errexit

lib/sh/util.sh: import_vars: documented that vars already set will not be overwritten

inputs/NY/run: documented `make inputs/NY/validate` runtime (2 min, currently for the input queries)

added inputs/Madidi/_src/ to match wiki steps in wiki.vegpath.org/Adding_a_flat-file_datasource

added validation/aggregating/pipeline/validations_on_sparse_datasources.odg

planning/workflow/bien3_architecture/stage_I.png, stages.png: synced to bien3_architecture.pptx

planning/workflow/bien3_architecture.pptx: stage I: made all datasources the same height so that the denormalized VegCore schema boxes would all look exactly the same. widened the denormalized VegCore schema boxes to make it visually clear that they have more columns than the staging tables denormalized together