Add test infra for Python 3.14 #511

Job	Run time
Create sdist and Python 3 Wheel	38s
Test Documentation	33s
Create Python 2 Wheel	44s
Test Typing (sdist)	33s
Test Typing (wheel)	35s
Test Package (2.7, wheel)	18s
Test Package (2.7, sdist)	18s
Test Package (3.4, sdist)	18s
Test Package (3.4, wheel)	18s
Test Package (3.3, wheel)	18s
Test Package (3.6, wheel)	17s
Test Package (3.5, wheel)	22s
Test Package (3.7, sdist)	18s
Test Package (3.6, sdist)	18s
Test Package (3.3, sdist)	20s
Test Package (3.7, wheel)	15s
Test Package (3.8, wheel)	18s
Test Package (3.5, sdist)	21s
Test Package (3.9, sdist)	28s
Test Package (3.8, sdist)	18s
Test Package (3.12, sdist)	36s
Test Package (3.14, sdist)	37s
Test Package (3.14, wheel)	27s
Test Package (3.11, sdist)	31s
Test Package (3.9, wheel)	22s
Test Package (3.11, wheel)	26s
Test Package (3.13, sdist)	43s
Test Package (3.12, wheel)	31s
Test Package (3.10, sdist)	32s
Test Package (3.13, wheel)	28s
Test Package (3.10, wheel)	26s
	13m 27s

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