* Introduce proper error types for a lot of functions, remove main catch-all type
* Fix compilation and clippy issues
* Map, unmap and drop always
* Remove not required parentheses
* Fix running on non-vulkan platforms
* Add and use thiserror crate
* Apply clippy fixes
* Use nightly for android
* Use nightly for web
* Fix feature usage
* Deny unused imports
* Add ios and web fixup
* Exit with non-zero exit code
* Add no_pendantic_os_check cfg flag
* Remove util module in renderer
* Implement default for ZoomLevel
* Add function to clear the bufferpool
* Calculate camera height dynamically
* Deduplicate code and add sample tile-grid
* Remove unused function