fix github ci for fibs

ui_dbg.h: fix %lu vs %llu mess via PRIu64

fix gcc warnings

fix a couple of msvc warnigns (when porting chips-test to fibs build system)

Merge branch 'leiradel-allow_invalid_regs'

ay38910.h: add some comment-links, remove old out-commented tick-function

Merge branch 'allow_invalid_regs' of github.com:leiradel/chips into leiradel-allow_invalid_regs

integrate sokol debug ui

Return 0 when reading from an invalid register

Allow invalid registers

Merge pull request #109 from leiradel/fixed_ay38910_envelope_15

Envelope 15 fix

i8255.h: fix _i8255_write_port_pins (fixed #108)

fix a comment typo

minor formatting fix in changelog