Improve performance of from_ordinal of temporal types.

[robsdedude]

Speeds up the function by about a factor of 100
(depending on the exact ordinal chose).

[bigmontz]

🍏

(However, there is no tested related to the from_ordinal function in the code base)

[robsdedude]

There actually are tests 😇

neo4j-python-driver/tests/unit/common/time/test_date.py

Lines 55 to 89 in c0e92fb

	def test_zero_ordinal(self) -> None:
	d = Date.from_ordinal(0)
	assert d.year_month_day == (0, 0, 0)
	assert d.year == 0
	assert d.month == 0
	assert d.day == 0
	assert d is ZeroDate
	def test_ordinal_at_start_of_1970(self) -> None:
	d = Date.from_ordinal(719163)
	assert d.year_month_day == (1970, 1, 1)
	assert d.year == 1970
	assert d.month == 1
	assert d.day == 1
	def test_ordinal_at_end_of_1969(self) -> None:
	d = Date.from_ordinal(719162)
	assert d.year_month_day == (1969, 12, 31)
	assert d.year == 1969
	assert d.month == 12
	assert d.day == 31
	def test_ordinal_at_start_of_2018(self) -> None:
	d = Date.from_ordinal(736695)
	assert d.year_month_day == (2018, 1, 1)
	assert d.year == 2018
	assert d.month == 1
	assert d.day == 1
	def test_ordinal_at_end_of_2017(self) -> None:
	d = Date.from_ordinal(736694)
	assert d.year_month_day == (2017, 12, 31)
	assert d.year == 2017
	assert d.month == 12
	assert d.day == 31

Their exhaustiveness is very debatable though ;)