Use vcpkg to find Catch2 #618

Job	Run time
Coverage	1m 6s
Docs	10s
clang-format	51s
Windows MSVC Shared Debug	2m 15s
ASan	58s
Windows MSVC Shared Release	2m 19s
clang-tidy	1m 5s
UBSan	54s
Windows MSVC Static Debug	1m 55s
Windows MSVC Static Release	2m 37s
Windows ClangCL Shared Debug	2m 10s
Windows ClangCL Shared Release	3m 10s
Windows ClangCL Static Debug	2m 9s
Windows ClangCL Static Release	2m 3s
Windows Clang Shared Debug	1m 50s
Windows Clang Shared Release	2m 32s
Windows Clang Static Debug	2m 32s
Windows Clang Static Release	2m 31s
Linux GCC Shared Debug	49s
Linux GCC Shared Release	50s
Linux GCC Static Debug	57s
Linux GCC Static Release	53s
Linux Clang Shared Debug	50s
Linux Clang Shared Release	53s
Linux Clang Static Debug	52s
Linux Clang Static Release	1m 2s
macOS Clang Shared Debug	1m 47s
macOS Clang Shared Release	2m 7s
macOS Clang Static Debug	1m 40s
macOS Clang Static Release	1m 46s
	47m 33s

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