Add method to ED1d for calculating membrane resistance as a function of ion concentration #9111

Job	Run time
Check code is formatted (Black)	20s
Test notebooks (py3.9/linux)	4m 10s
Test notebooks (py3.9/win64)	9m 9s
Code linting (pylint)	4m 36s
Tests (py3.9/linux)	26m 3s
macOS setup (EXPERIMENTAL) (3.9)	25m 16s
Test notebooks (py3.11/linux)	3m 45s
Tests (py3.9/win64)	40m 33s
pytest (user mode) (py3.9/linux)	37m 20s
Test notebooks (py3.11/win64)	8m 49s
Tests (py3.10/linux)	31m 19s
pytest (user mode) (py3.9/win64)	38m 29s
Tests (py3.10/win64)	54m 46s
pytest (user mode) (py3.11/linux)	27m 45s
Tests (py3.11/linux)	19m 28s
pytest (user mode) (py3.11/win64)	42m 54s
Tests (py3.11/win64)	37m 38s
Upload coverage report (Codecov)	14s
	6h 52m 34s

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