build

add C++20 module #267

Job	Run time
ubuntu cmake	8s
windows (Win32, standard)	15s
ubuntu (g++, standard)	7s
windows (Win32, PUGIXML_WCHAR_MODE)	25s
windows (Win32, PUGIXML_COMPACT)	23s
ubuntu (g++, PUGIXML_WCHAR_MODE)	4s
macos cmake	1s
windows (Win32, PUGIXML_NO_EXCEPTIONS)	24s
ubuntu (g++, PUGIXML_COMPACT)	5s
windows (Win32, PUGIXML_STRING_VIEW)	16s
ubuntu (g++, PUGIXML_NO_EXCEPTIONS)	7s
windows (x64, standard)	11s
ubuntu (g++, PUGIXML_STRING_VIEW)	6s
windows (x64, PUGIXML_WCHAR_MODE)	12s
ubuntu (clang++, standard)	7s
windows (x64, PUGIXML_COMPACT)	14s
ubuntu (clang++, PUGIXML_WCHAR_MODE)	10s
windows (x64, PUGIXML_NO_EXCEPTIONS)	15s
ubuntu (clang++, PUGIXML_COMPACT)	16s
windows (x64, PUGIXML_STRING_VIEW)	14s
ubuntu (clang++, PUGIXML_NO_EXCEPTIONS)	11s
ubuntu (clang++, PUGIXML_STRING_VIEW)	6s
macos (clang++, standard)	9s
macos (clang++, PUGIXML_WCHAR_MODE)	12s
macos (clang++, PUGIXML_COMPACT)	10s
macos (clang++, PUGIXML_NO_EXCEPTIONS)	10s
macos (clang++, PUGIXML_STRING_VIEW)	9s
	5m 7s

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