Does not build under WIndows/MSVC 2019

[Framstag]

See https://ci.appveyor.com/project/Framstag/libosmscout/builds/36189266/job/fl9f29yrf91lf15l?fullLog=true

"C:\projects\libosmscout\debug\libosmscout.sln" (build target) (1) ->
"C:\projects\libosmscout\debug\subprojects\xz-5.2.1\src\liblzma\da1945d@@lzma@sha.vcxproj" (default target) (5) ->
(ClCompile target) -> 
  C:\projects\libosmscout\subprojects\xz-5.2.1\src\common\tuklib_integer.h(386,25): error C2065: 'DWORD': undeclared identifier [C:\projects\libosmscout\debug\subprojects\xz-5.2.1\src\liblzma\da1945d@@lzma@sha.vcxproj]
  C:\projects\libosmscout\subprojects\xz-5.2.1\src\common\tuklib_integer.h(386,26): error C2059: syntax error: ')' [C:\projects\libosmscout\debug\subprojects\xz-5.2.1\src\liblzma\da1945d@@lzma@sha.vcxproj]
  C:\projects\libosmscout\subprojects\xz-5.2.1\src\common\tuklib_integer.h(438,25): error C2065: 'DWORD': undeclared identifier [C:\projects\libosmscout\debug\subprojects\xz-5.2.1\src\liblzma\da1945d@@lzma@sha.vcxproj]
  C:\projects\libosmscout\subprojects\xz-5.2.1\src\common\tuklib_integer.h(438,26): error C2059: syntax error: ')' [C:\projects\libosmscout\debug\subprojects\xz-5.2.1\src\liblzma\da1945d@@lzma@sha.vcxproj]
  C:\projects\libosmscout\subprojects\xz-5.2.1\src\common\tuklib_integer.h(488,25): error C2065: 'DWORD': undeclared identifier [C:\projects\libosmscout\debug\subprojects\xz-5.2.1\src\liblzma\da1945d@@lzma@sha.vcxproj]
  C:\projects\libosmscout\subprojects\xz-5.2.1\src\common\tuklib_integer.h(488,26): error C2059: syntax error: ')' [C:\projects\libosmscout\debug\subprojects\xz-5.2.1\src\liblzma\da1945d@@lzma@sha.vcxproj]

You can find the project using it as subproject here: https://github.com/Framstag/libosmscout