Implement SEP-990 Enterprise Managed OAuth #1507

Job	Run time
checks / pre-commit	32s
checks / readme-snippets	11s
checks / test (3.10, lowest-direct, ubuntu-latest)	1m 1s
checks / test (3.10, lowest-direct, windows-latest)	2m 54s
checks / test (3.10, locked, ubuntu-latest)	53s
checks / test (3.10, locked, windows-latest)	2m 26s
checks / test (3.13, lowest-direct, ubuntu-latest)	56s
checks / test (3.11, lowest-direct, ubuntu-latest)	59s
checks / test (3.11, lowest-direct, windows-latest)	2m 45s
checks / test (3.12, lowest-direct, windows-latest)	3m 59s
checks / test (3.12, locked, ubuntu-latest)	1m 0s
checks / test (3.12, locked, windows-latest)	3m 58s
checks / test (3.13, locked, ubuntu-latest)	52s
checks / test (3.12, lowest-direct, ubuntu-latest)	1m 3s
checks / test (3.11, locked, windows-latest)	2m 16s
checks / test (3.13, lowest-direct, windows-latest)	2m 54s
checks / test (3.11, locked, ubuntu-latest)	51s
checks / test (3.14, lowest-direct, windows-latest)	2m 32s
checks / test (3.14, locked, ubuntu-latest)	2m 17s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 20s
checks / test (3.14, locked, windows-latest)	2m 50s
checks / test (3.13, locked, windows-latest)	2m 34s
all-green	4s
	41m 7s

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