Bedrock-server-manager

1. Fixed Linux resource usage monitor
2. Fixed Linux systemd enable/disable

1. Fixed EXPATH variable in Linux scheduler
2. Fixed Modify Windows Task

1. Added handlers module
- Refactored cli to use handlers
2. Refactored settings module
- Migrated settings to a class
3. Fixed logger variables
4. [WIP] Send command support for Windows
- Requires pywin32 module to be installed
- Requires seperate start method not currently available

1. BREAKING CHANGE: Completely refactored .py script to a pip package
- Now installed/updated with `pip` command
2. Use `BEDROCK_SERVER_MANAGER_DATA_DIR` env variable for default data location
- Defaults to `$HOME/bedrock-server-manager` if variable doesnt exist
- Follow your platforms documentation for setting Enviroment Variables
3. Logging refactored to use standard python logging
- Most functions now raise Exceptions instead of returning an error code
4. Removed windows-start/stop commands
5. Added new commands
6. The following variables were added to script_config.json
- CONTENT_DIR
- DOWNLOAD_DIR
- BACKUP_DIR
- LOG_DIR
- LOGS_KEEP
- LOG_LEVEL

1. Revaluated error codes
2. Ensure write permissions before certain operations such as delete server

1. Better handle send-command