add LinearAlgebraExt #243

Job	Run time
Julia 1.0 - ubuntu-latest - x64	1m 0s
Julia 1.0 - macOS-latest - x64	1m 5s
Julia 1.0 - windows-latest - x64	1m 3s
Julia 1.3 - ubuntu-latest - x64	1m 4s
Julia 1.3 - macOS-latest - x64	1m 12s
Julia 1.3 - windows-latest - x64	8s
Julia 1.5 - ubuntu-latest - x64	1s
Julia 1.5 - macOS-latest - x64	5s
Julia 1.5 - windows-latest - x64	1s
Julia 1.6 - ubuntu-latest - x64	1s
Julia 1.6 - macOS-latest - x64	1s
Julia 1.6 - windows-latest - x64	1s
Julia 1.7 - ubuntu-latest - x64	1s
Julia 1.7 - macOS-latest - x64	1s
Julia 1.7 - windows-latest - x64	1s
Julia 1 - ubuntu-latest - x64	1s
Julia 1 - macOS-latest - x64	1s
Julia 1 - windows-latest - x64	1s
Julia nightly - ubuntu-latest - x64	1s
Julia nightly - macOS-latest - x64	1s
Julia nightly - windows-latest - x64	1s
	5m 51s

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