cmake: Make static VC runtime libraries consistent

Makes Visual C runtime libraries consistent across
Debug/MinSizeRel/Release/RelWithDebInfo, rather than just changing those
flags for RelWithDebInfo.  Also adds /Zl for statically linked
libraries.

Closes obsproject/obs-studio#1421

deps/lzma/CMakeLists.txt

@@ -30,7 +30,7 @@ add_definitions(
 
 if(WIN32)
 	if(MSVC)
-		add_compile_options("$<$<CONFIG:RelWithDebInfo>:/MT>")
+		add_compile_options($<IF:$<CONFIG:Debug>,/MTd,/MT> /Zl)
 		add_compile_options("/wd4244")
 		add_compile_options("/wd4267")
 	endif()