Enhance AWS Enumerator Tool with Lambda and Gateway Resource Support

- Added functionality to enumerate and display AWS Lambda functions, including details such as runtime, memory, timeout, and VPC configuration.
- Implemented scanning for Internet and NAT Gateways, capturing their state, type, and associated VPCs.
- Introduced a new Network Security tab in the GUI for analyzing security configurations across accounts, including security groups and network ACLs.
- Updated README.md to reflect new features and permissions required for Lambda and Gateway resource access.
- Improved error handling and progress tracking during resource scans.

This commit significantly enhances the AWS Enumerator Tool's capabilities for managing and analyzing AWS resources.