solving #22, updated Framework to .Net Standard 2.1 & Update Nugets.

[Flamifly]

I added the https://github.com/FenPhoenix/ReasonableRTF Project to be able to extract Text of RTF Files correctly.

• Needed to implement multiple .Net Runtime Methods to be able to convert it to .Net Standard

I also upgraded the Tests to .Net 8 since .Net 6 is not supported anymore

• Updated NUnit to the Newest Version and fixed Assers

I updated the Nugets if possible (NPOI seems to work different with 2.7.5 because the some Tests fails)

• changed the IsTrue Method to IsEqual to gain better Performance

Tested Code:

public void Run()
{
    for (int i = 0; i < 1_000_000; i++)
    {
        IsTrue("1");
        IsTrue("0");
        IsTrue("on");
        IsTrue("off");
        IsTrue("true");
        IsTrue("false");
    }
}
public void Run2()
{
    for (int i = 0; i < 1_000_000; i++)
    {
        IsTrue2("1");
        IsTrue2("0");
        IsTrue2("on");
        IsTrue2("off");
        IsTrue2("true");
        IsTrue2("false");
    }
}

public static bool IsTrue(string sValue)
{
    sValue = sValue.ToLower();
    return (sValue == "1" || sValue == "on" || sValue == "true");
}

public static bool IsTrue2(string sValue)
{
    return (sValue.Equals("1", StringComparison.OrdinalIgnoreCase)) || (sValue.Equals("on", StringComparison.OrdinalIgnoreCase)) || (sValue.Equals("true", StringComparison.OrdinalIgnoreCase));
}

Result:

Changed the Comparer for the parserMapping Dictionary in the ParserFactory. The Keys will be checked caseinsensitiv to avoid allocations.

[Flamifly]

I checked the differences between .Net Standard 2.0 and 2.1 and need to turn it back sorry did not know that it won't support Framework.

I will open a new one if I ported it to 2.0

[Flamifly]

Changed Framework back to .Net Standard 2.0

The Change to the RTF Library is a huge improvement the performance difference is crazy.

Note: The new Method extracts the Text 10 times while the old implementation does it once. The Test File was a ~15MB RTF File for both Tests, I duplicated it because I wasn't sure if the Tests will ran multithreaded.
Tested:

private static readonly Toxy.ParserContext context = new Toxy.ParserContext(fileName);
private static readonly Toxy.ParserContext context2 = new Toxy.ParserContext(fileName2);

public void Run()
{
    ToxyFramework.Parsers.RTFTextParser parser = new ToxyFramework.Parsers.RTFTextParser(context);
    for (int i = 0; i < 10; i++)
    {
        parser.Parse();
    }
}
public void Run2()
{
    ToxyFramework.Parsers.RTFTextParser parser = new ToxyFramework.Parsers.RTFTextParser(context2);
    parser.Parse2();
}

Result:

As you can see the allocations are more than 11GB less and the take more than 22secs time.