refactor: Extracted output methods and updated color utilities

[ofekatr]

• Follows CONTRIBUTING rules

What does this PR do?

• Updates the color utilities for the new CLI output to include the info and success colors, and applying them to the relevant output sections.
• Extracts output functions and messages for the initial user message and share results, and adds tests for them.

Where should the reviewer start?

• src/lib/formatters/iac-output/v2/color-utils.ts
• src/cli/commands/test/iac/index.ts

[github-actions]

	Warnings
⚠️	Since the CLI is unifying on a standard and improved tooling, we're starting to migrate old-style imports and exports to ES6 ones. A file you've modified is using either module.exports or require(). If you can, please update them to ES6 import syntax and export syntax. Files found: src/cli/commands/test/iac/index.ts src/lib/formatters/iac-output/v2/issues-list.ts

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[francescomari]

I love what you did here!