[slick-logger] new port

[freshthinking]

If this PR adds a new port, please uncomment and fill out this checklist:

• Changes comply with the maintainer guide.
• The name of the port matches an existing name for this component on https://repology.org/ if possible, and/or is strongly associated with that component on search engines.
• Optional dependencies are resolved in exactly one way. For example, if the component is built with CMake, all find_package calls are REQUIRED, are satisfied by vcpkg.json's declared dependencies, or disabled with CMAKE_DISABLE_FIND_PACKAGE_Xxx.
• The versioning scheme in vcpkg.json matches what upstream says.
• The license declaration in vcpkg.json matches what upstream says.
• The installed as the "copyright" file matches what upstream says.
• The source code of the component installed comes from an authoritative source.
• The generated "usage text" is accurate. See adding-usage for context.
• The version database is fixed by rerunning ./vcpkg x-add-version --all and committing the result.
• Only one version is in the new port's versions file.
• Only one version is added to each modified port's versions file.

Description:
Add new port for slick_logger, A high-performance, cross-platform header-only C++ logging library.

Features:

• High Performance: Asynchronous logging using slick_queue ring buffer for minimal latency
• Modern Formatting: Uses C++20 std::format for type-safe, efficient string formatting
• Multi-Sink Architecture: Log to multiple destinations simultaneously (console, files, custom sinks)
• Log Rotation: Size-based and time-based rotation with configurable retention
• Colored Console Output: ANSI color support with configurable error routing
• Header-Only: No linking required - just include and use
• Cross-Platform: Supports Windows, Linux, and macOS
• Multi-Threaded: Safe for concurrent logging from multiple threads
• C++20: Utilizes modern C++ features
• Easy to Use: Simple macros for logging at different levels

Homepage: https://github.com/SlickQuant/slick_logger
License: MIT