Tensor product 1d nodes & basis functions #2224

Job	Run time
Pytest Conda Py3	15m 41s
Documentation	2h 43m 20s
Examples Conda Py3	5m 24s
Pytest Firedrake	6m 16s
Examples Firedrake	3m 28s
Flake8	18s
Mypy	3m 51s
Pylint	4m 5s
Tests for downstream project grudge	8m 43s
Tests for downstream project pytential	45m 53s
Tests for downstream project mirgecom	3s
Tests for downstream project mirgecom_examples	6s
	4h 17m 8s

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