Add `OneCycle` constructor #203

Job	Run time
Documentation	3m 16s
Julia 1 - ubuntu-latest - x64 - pull_request	1m 19s
Julia 1 - ubuntu-latest - x86 - pull_request	1m 54s
Julia 1 - macOS-latest - x64 - pull_request	1m 32s
Julia 1 - windows-latest - x64 - pull_request	2m 12s
Julia 1 - windows-latest - x86 - pull_request	3m 19s
Julia 1.6 - ubuntu-latest - x64 - pull_request	1m 53s
Julia 1.6 - ubuntu-latest - x86 - pull_request	2m 9s
Julia 1.6 - macOS-latest - x64 - pull_request	2m 16s
Julia 1.6 - windows-latest - x64 - pull_request	9m 41s
Julia 1.6 - windows-latest - x86 - pull_request	10m 35s
Julia nightly - ubuntu-latest - x64 - pull_request	1m 12s
Julia nightly - ubuntu-latest - x86 - pull_request	1m 22s
Julia nightly - macOS-latest - x64 - pull_request	2m 2s
Julia nightly - windows-latest - x64 - pull_request	1m 51s
Julia nightly - windows-latest - x86 - pull_request	2m 47s
	49m 20s

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