New Features
- **kconfcheck**: add check whether symbol name is all uppercase
- **kconfgen**: Support renames with inversion in sdkconfig.renames
Bug Fixes
- **kconfgen**: Improve error message for int/hex without default
- **kconfgen**: Disallow rename to the same name in sdkconfig.renames
- Dont ask for the filename when saving configuration
Code Refactoring
- **kconfgen**: Improve code quality of kconfgen.py