Add support for chained command execution

[uproid]

Overview

Add support for executing multiple commands sequentially in a single invocation.

Example

dart example/example_app.dart test -p hi --and help --and test -p by --and exit

Expected Behavior

• Execute commands in the order they are provided.
• Use --and as the command separator.
• Stop execution if a command fails (or define configurable behavior if needed).
• Preserve command-specific arguments for each command.