User/Group Name Resolution and Enhanced Color Logging

[arthurpro]

User/Group Name Resolution and Enhanced Color Logging

This PR introduces two quality-of-life improvements:

1. Forced Color Output Support

• Enables EnvironmentOverrideColors flag in the log formatter
• Allows forcing colored log output in non-TTY sessions using CLICOLOR_FORCE=1
• Improves log readability in CI/CD pipelines and redirected outputs

2. Symbolic User/Group Names in Files Definition

• Adds support for using symbolic names (like nginx) instead of numeric UIDs/GIDs in file definitions
• Automatically resolves symbolic names to appropriate numeric IDs during build
• Solves the issue of varying UIDs/GIDs across different builds and environments

Example usage:

files:
    - generator: dump
      path: /tmp/test
      content: |-
        hello
        world
      mode: "644"
      uid: nginx
      gid: nginx

Benefits

• More maintainable configuration files
• Reduced errors from hardcoded numeric IDs
• Better portability across different environments
• More intuitive file ownership configuration

Testing

Both features have been thoroughly tested across multiple environments and build configurations.

[stgraber]

@arthurpro can you make sure your commits include the required Signed-off-by line? (see CONTRIBUTING)

[arthurpro]

@stgraber sure! I'll take a look on Monday