This commit introduces the .gitignore configuration file and adds SPDX headers to several files including test and documentation files. The headers provide license information in a standardized format which can be easily picked up by automated tools for license compliance checks. Additionally, it deleted a .idea/.gitignore file, which is a project specific IDE configuration file not necessary for the repository. It also introduced a README.md file providing more insightful information about the project.
Refactored the generator to include a new config option, changed function signatures to follow the new structure, and renamed the function 'RandomString' to 'RandomStringFromCharRange' for clarity. Also, added a new mode and algorithm feature to enhance password generation. Furthermore, added several tests for new features and configurations. Adapted the CLI to use the new configuration approach. This refactoring was necessary to improve the customizability and clarity of the password generation process. Fixed minor issues and added '.gitignore' for clean commits in the future.