feat: add CLI wrapper script for container management

[cmagina]

Summary

This PR is part 10 of 11 in the rework modernization effort. It adds a CLI wrapper script for easier container management.

Changes:

• ✅ Add triton-dev-containers.sh CLI tool

Features:

• User-friendly command-line interface
• Wraps Makefile targets with better UX
• Provides help and usage information
• Simplifies common container operations
• Supports all framework and variant combinations

Why this change?

While the Makefile (PR #122) provides powerful functionality, it can be:

• Intimidating for new users
• Verbose to use (long make commands with many options)
• Less discoverable (requires reading Makefile or docs)

The CLI tool addresses this by:

• Providing a more intuitive interface
• Lowering the barrier to entry
• Offering better help/usage information
• Simplifying common workflows
• Still leveraging the Makefile under the hood

Example usage:

# Build images
./triton-dev-containers.sh build cuda

# Run containers
./triton-dev-containers.sh run cuda --triton

# Get help
./triton-dev-containers.sh help

Testing:

• Wraps Makefile targets from PR refactor: modernize Makefile build system for new architecture #122
• Works with all variants: cpu, cuda, rocm
• Supports all framework installation options

Dependencies:

• Depends on PR refactor: modernize Makefile build system for new architecture #122 (Makefile Modernization)

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