followed by digit (ignore 2nd byte of FNC4 when categorizing
Code C characters)
- New `ZBarcode_Cap()` flag `ZINT_CAP_BINDABLE`, differentiated
from `ZINT_CAP_STACKABLE`, and new Qt Backend method
`isBindable()`
- CLI: fix `separator` check to use new `ZINT_CAP_BINDABLE` instead
of `ZINT_CAP_STACKABLE`
- ZBarcode_Cap: add missing symbologies to `ZINT_CAP_BINDABLE` (was
`ZINT_CAP_STACKABLE`)
- DOTCODE: pad rows if given number of columns instead of failing
if rows below min (5)
- DBAR/composites: ensure stacked symbologies and composites are
not stacked (set `symbol->rows` to 0)
- test suite: move `test_perf` routines into single test
"test_perf";
new "test_random" (based on "test_bwipp") to test various
symbologies with random binary - discovered CODABLOCKF bug;
expand "test_bwipp"
manual: Feeback: mention AZTEC -1 meaning min & MICROPDF417:
doc new `ZINT_CAP_BINDABLE`
general: various code fiddlings and re-formattings
