Consider releasing v1.4.0

[ramonsmits]

@EliasOenal could you consider releasing a new version as I've fixed a few issues in the FLEX decoder. I don't know if you follow https://semver.org/ but if you do that would be version 1.4.0

Bugfixes:

• https://github.com/EliasOenal/multimon-ng/pull/227
• https://github.com/EliasOenal/multimon-ng/pull/223

Enhancements:

• https://github.com/EliasOenal/multimon-ng/pull/224 Non-breaking new arg
• https://github.com/EliasOenal/multimon-ng/pull/225 Non-breaking new arg
• https://github.com/EliasOenal/multimon-ng/pull/221 Extra info only with verbose level 2, likely not used by any parsers and can be considers non-breaking