C++

Update path to mkl and kiss fft headers #1583

Job	Run time
ubuntu-latest-gcc-11-blas	16m 14s
ubuntu-latest-clang-default-avx	16m 34s
windows-latest	29m 25s
ubuntu-22-04-gcc-default-cmake-3-17-ffmpeg5	26m 32s
ubuntu-22-04-ffmpeg711	1m 27s
ubuntu-22-04-ffmpeg701	1m 24s
	1h 31m 36s

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