Release GA-CPP-SDK v4.0.0

What's Changed

Breaking Changes 🛠

• updated to C++17
• refactored the code base
• rewritten GA thread logic
• rewritten build scripts
• changed user id logic to always use randomized id (except if custom id is set)
• replaced usage of unsafe cstrings and functions with safer alternatives
• replaced RapidJson with ModernJson
• removed Tizien support
• added SDK init event
• added health event
• added external user id
• safer handling of device properties retrieval
• added exception handling
• improved stability
• various bug fixes
• CI & Build Scripts Refactoring by @Gogoshika-ga in #10
• Add code coverage by @Gogoshika-ga in #11
• Unit Tests & CI improvements by @Gogoshika-ga in #12

Bug fixes 🐛

• Fix bug build workflow not executing debug+release builds on PRs to main branch by @Gogoshika-ga in #16

Other Changes 🔄

• Update README.md by @Gogoshika-ga in #8
• Remove UWP define by @dorin-ga in #9
• added zf log back by @dorin-ga in #13
• Add Release Workflow + CI improvements by @Gogoshika-ga in #14
• Fix Release Asset Folder Struct by @Gogoshika-ga in #17

Full Changelog: https://github.com/GameAnalytics/GA-SDK-CPP-NEW/commits/v4.0.0