Install cmake config to more standard location #226

Job	Run time
clang-sanitizers (,thread)	1m 32s
clang-sanitizers (,address,undefined)	1m 33s
linux-compat (manylinux1-x64)	45s
linux-compat (manylinux1-x86)	52s
linux-compiler-compat (clang-3)	1m 9s
linux-compat (manylinux2014-x64)	54s
linux-compiler-compat (clang-6)	1m 16s
linux-compat (manylinux2014-x86)	1m 3s
linux-compiler-compat (clang-8)	1m 49s
linux-compat (fedora-34-x64)	42s
linux-shared-libs	52s
linux-compiler-compat (clang-9)	1m 27s
linux-compat (opensuse-leap)	43s
linux-compiler-compat (clang-10)	1m 15s
linux-compiler-compat (clang-11)	1m 15s
linux-compat (rhel8-x64)	38s
windows	2m 21s
linux-compiler-compat (clang-15)	1m 23s
linux-compat (al2-x64)	37s
linux-compiler-compat (clang-17)	1m 31s
linux-compiler-compat (gcc-4.8)	59s
downstream	25m 44s
macos	44s
linux-compiler-compat (gcc-5)	55s
macos-x64	48s
linux-compiler-compat (gcc-6)	1m 3s
linux-compiler-compat (gcc-7)	55s
windows-app-verifier	2m 41s
linux-compiler-compat (gcc-8)	1m 16s
windows-shared-libs	2m 20s
linux-compiler-compat (gcc-11)	1m 13s
windows-vc14 (x86)	1m 20s
windows-vc14 (x64)	1m 1s
linux-compiler-compat (gcc-13)	1m 38s
	1h 6m 14s

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