Drop old version of Visual Studio C++ (2013, 2015, 2017)
Currently we have the following .vsxproj files:
- antlr4cpp-vs2013.vcxproj
- antlr4cpp-vs2015.vcxproj
- antlr4cpp-vs2017.vcxproj
- antlr4cpp-vs2019.vcxproj
I suggest removing the first three and adding antlr4cpp-vs2022.vcxproj:
- antlr4cpp-vs2019.vcxproj
- antlr4cpp-vs2022.vcxproj
@mike-lischke what do you think?
Also, these projects can't be built because they weren't updated after some files removing (for instance, ATNSerializer.cpp).