intermediate CodeC sequence by setting `f_state` only if in
CodeA/B & checking before adding extended mode switch (cf
OkapiBarcode commit [9ce6dcc], props Daniel Gredler)
DATAMATRIX: in FAST_MODE re-process any buffered X12 characters
when mode changes from X12 (cf OkapiBarcode commit [fb7981e],
props Daniel Gredler)
CODABLOCKF: allow for FNC4 when estimating no. of rows required
CODE16K: make sure row calculation accurate by dispensing with
glyph estimate & using actual codeword count
CODE16K: ensure initial mode selection allows for extended
characters
vector.c: add `z_alloca()` cast for `first_row_rects` (ticket
#272)
MSVC project files: remove incorrect "CompileACpp" setting from
libzint project files (ticket #272)
bwipp_dump.ps: fix 2/4-track processing; update to latest BWIPP
manual/man page/GUI: Code 16k -> Code 16K
GRIDMATRIX, HANXIN, MAXICODE, MICROPDF417, PDF417, QRCODE, RMQR, ULTRA
RMQR: fix ECI encoding (wrong bit length for indicator)
MICROQR: check versions M1 and M2 for allowed characters so as to give
better error messages
DOTCODE: some small optimizations
common.c: add is_chr(), segs_length(), segs_cpy()
CODEONE/CODE128/DOTCODE/GRIDMATRIX/HANXIN/MAXICODE/QRCODE/ULTRA: add
namespace prefixes to static funcs/data
includes: use Z_ prefix, unuse double underscore prefixes (guard defines)
manual.txt: compress some tables using double/treble column sets
RMQR: update to new draft ISO/IEC JTC1/SC31N000 (Draft 2019-6-24);
allow for righthand vertical timing pattern in populate_grid()
ULTRA: update max size and min cols based on BWIPP 2021-07-14 update
backend_tcl/zint_tcl.dsp: use /MD instead of /MT for tcl lib compat;
change include/lib path to more standard one
manual.txt: highlight that rMQR is still in development
GUI: use cross-platform smaller font func instead of explicit values for notes
bmp/emf/ps.c: allow for foreground colour in ULTRA
bmp/gif/pcx.c: allow for BARCODE_STDOUT (fflush/fclose)
emf.c: hexagon rotation field not used; dont't use float index in font loop; Windows stdout binary mode
png.c: remove unused 8-bit; simplify libpng error handling and fclose outfile on error
ps.c: fix buffer overflow on colour_to_pscolor() CMYK
tif.c: fix BLACKISZERO indexes
CODE39: simplify check digit setting
reedsol.c: rs_uint_init_gf() log/alog tables must be zeroed
ZBarcode_Encode: debug: fix access out-of-bounds on non-NUL-terminated source if length < 10
manual.txt/zint.h: document NUL-terminated strings
tests: cover further cases for output (bmp/emf/etc), eci/gb18030/gb2312/sjis, reedsol, AZTEC, CODE39
