upgraed modern-cpp-kafka (#50)

Issue/48 (#49)

* add list group in API

* add consumer to overview page

* update AppVeyor Qt version

* improve table headers; parse member assignment

* consumer group filter model

* add: group members view

* add: back to groups view

Co-authored-by: Dmitry Mukhitov <damukhitov@mts.ru>

release with syntax highlighting

Merge remote-tracking branch 'origin/main'

osx bundle name has arch

export records to csv/json

Add simple hex view

Release 1.3.0

json2proto

win: remove pdb