Implement new axmol log system based on fmtlib

[halx99]

Describe your changes

Add new macros fmtlib style format args

AXLOGD("hello {} value={}", "world",  29.0);

• The deprecated API ax::log was removed, could replaced by ax::print
• AXLOGD: like AXLOG when _AX_DEBUG=1
• AXLOGI: INFO
• AXLOGW: WARN
• AXLOGE: ERR
• AXLOGX: always output like invoke ax::log or ax::print
• Add API: ax::setLogLevel to control log level at runtime
• Add API: ax::setLogFmtFlag to enable add log prefix, i.e. ax::setLogFmtFlag(ax::LogFmtFlag::Full) will add prefix as: D/[2024-03-06 02:20:52.019][PID:83f0][TID:b0e4]`
• Add API: ax::setLogOutput to redirect log to anywhere, i.e. write to file
• Colorful log support Logging colorful support #1735
• output log message to stderr if level is LogLevel::Error Logging colorful support #1735

// add to AppleDelegate.cpp

#include "yasio/singleton.hpp"

USING_NS_AX;

class SampleLogOutput : public ILogOutput
{
public:
    SampleLogOutput()
    {
        auto fu   = FileUtils::getInstance();
        _filePath = fu->getWritablePath() + "game.log";
        _fs       = fu->openFileStream(_filePath, ax::IFileStream::Mode::APPEND);

        ax::setLogFmtFlag(ax::LogFmtFlag::Full);

        AXLOGW("further log message will write to {}", _filePath);

        ax::setLogOutput(this);
    }

    ~SampleLogOutput() override
    {
        ax::setLogOutput(nullptr);
        _fs->close();
    }
    void write(std::string&& message, LogLevel) override
    {
        if (_fs->size() > _threshold)
            _fs->resize(0);
        _fs->write(message.c_str(), static_cast<int>(message.size()));
    }

private:
    std::string _filePath;
    std::unique_ptr<IFileStream> _fs;
    int64_t _threshold{1024 * 1024 * 10};  // 10MB
};

bool AppDelegate::applicationDidFinishLaunching()
{
   // Initialize LogOutput
    yasio::singleton<SampleLogOutput>::instance();

   /// ...
}

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• I have added thorough tests.