Use std::string_view to return RegEx matches to avoid generating std:… #1049

Job	Run time
cppcheck	26m 21s
Windows (x64, full)	8m 13s
macOS (with parser generation)	2m 17s
Windows (x64, wo curl)	8m 37s
macOS (wo curl)	1s
Windows (x64, wo lua)	7m 46s
macOS (wo lua)	1s
Windows (x64, wo maxmind)	7m 45s
Linux (x64, gcc, with parser generation)	1s
macOS (wo maxmind)	1s
Windows (x64, wo libxml)	8m 25s
Linux (x64, gcc, wo curl)	1s
macOS (wo libxml)	1s
Windows (x64, with lmdb)	8m 21s
Linux (x64, gcc, wo lua)	1s
Linux (x64, gcc, wo maxmind)	1s
macOS (wo geoip)	1s
Linux (x64, gcc, wo libxml)	1s
macOS (wo ssdeep)	1s
Linux (x64, gcc, wo geoip)	1s
macOS (with lmdb)	2m 3s
Linux (x64, gcc, wo ssdeep)	1s
macOS (with pcre2)	1s
Linux (x64, gcc, with lmdb)	1s
Linux (x64, gcc, with pcre2)	1s
Linux (x64, clang, with parser generation)	1s
Linux (x64, clang, wo curl)	1s
Linux (x64, clang, wo lua)	1s
Linux (x64, clang, wo maxmind)	1s
Linux (x64, clang, wo libxml)	1s
Linux (x64, clang, wo geoip)	1s
Linux (x64, clang, wo ssdeep)	1s
Linux (x64, clang, with lmdb)	1s
Linux (x64, clang, with pcre2)	1s
Linux (x32, gcc, with parser generation)	1s
Linux (x32, gcc, wo curl)	3m 26s
Linux (x32, gcc, wo lua)	3m 28s
Linux (x32, gcc, wo maxmind)	2m 44s
Linux (x32, gcc, wo libxml)	1m 16s
Linux (x32, gcc, with lmdb)	1m 9s
Linux (x32, gcc, with pcre2)	15s
Linux (x32, clang, with parser generation)	20s
Linux (x32, clang, wo curl)	2s
Linux (x32, clang, wo lua)	3m 31s
Linux (x32, clang, wo maxmind)	3m 48s
Linux (x32, clang, wo libxml)	3m 31s
Linux (x32, clang, with lmdb)	3m 29s
Linux (x32, clang, with pcre2)	3m 26s
	1h 50m 39s

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