Converted the project to .NET 9#9

Open

xhafan wants to merge 2 commits intotilemapjp:masterfrom

Commits on Mar 19, 2025

Converted the project to .NET 9
xhafan
committed

Commits on Jun 8, 2025

Targeting .NET Standard 2.0 instead of .NET 9 to make it work on lower .NET Core versions and on .NET Framework as well
xhafan
committed