formula, fix name of cfi filter @excludeDimension
add fact method unitSymbol()
resolves symbols of multiply/divide and multiple units which each may be in utr
update ViewFactTable to have table index and tables (as with table
linkbase rendering) for SEC-style submissions.  Preliminary logic
for fact-to-table assignment using flow-thru.
xbrlDB: strip whitespace of entityInformation field
xbrlDB for DPM database, improve metric-dimension key robustness
add streaming mode indicator for modelXbrl
preliminary plugin to validate EBA filing rules