Add common SI prefixes for Farads (used in circuit design)

[GlenHertz]

No description provided.

[MilesCranmer]

Cheers!

[github-actions]

Benchmark Results

	main	35327d7...	t[main]/t[35327d7...]
Quantity/creation/Quantity(x)	3.1 ± 0.01 ns	4.33 ± 0.01 ns	0.717
Quantity/creation/Quantity(x, length=y)	3.11 ± 0.001 ns	3.11 ± 0.01 ns	1
Quantity/with_numbers/*real	3.1 ± 0.01 ns	3.1 ± 0.01 ns	1
Quantity/with_numbers/^int	8.67 ± 2.2 ns	8.05 ± 2.2 ns	1.08
Quantity/with_numbers/^int * real	8.36 ± 2.2 ns	8.67 ± 2.2 ns	0.964
Quantity/with_quantity/+y	4.04 ± 0.001 ns	4.04 ± 0.001 ns	1
Quantity/with_quantity//y	3.42 ± 0.01 ns	3.42 ± 0.01 ns	1
Quantity/with_self/dimension	3.1 ± 0.01 ns	3.1 ± 0.01 ns	1
Quantity/with_self/inv	3.41 ± 0.01 ns	3.11 ± 0.001 ns	1.1
Quantity/with_self/ustrip	3.1 ± 0.01 ns	2.79 ± 0.01 ns	1.11
QuantityArray/broadcasting/multi_array_of_quantities	0.15 ± 0.001 ms	0.145 ± 0.00059 ms	1.04
QuantityArray/broadcasting/multi_normal_array	0.0498 ± 0.00018 ms	0.0529 ± 0.00017 ms	0.943
QuantityArray/broadcasting/multi_quantity_array	0.155 ± 0.00067 ms	0.155 ± 0.00061 ms	1
QuantityArray/broadcasting/x^2_array_of_quantities	23.1 ± 1.4 μs	22.7 ± 1.4 μs	1.02
QuantityArray/broadcasting/x^2_normal_array	4.1 ± 0.87 μs	4.12 ± 0.86 μs	0.995
QuantityArray/broadcasting/x^2_quantity_array	6.98 ± 0.24 μs	7.01 ± 0.24 μs	0.996
QuantityArray/broadcasting/x^4_array_of_quantities	0.0785 ± 0.00053 ms	0.0784 ± 0.00042 ms	1
QuantityArray/broadcasting/x^4_normal_array	0.0498 ± 0.00019 ms	0.0467 ± 0.00017 ms	1.07
QuantityArray/broadcasting/x^4_quantity_array	0.0499 ± 0.00017 ms	0.0529 ± 0.00017 ms	0.943
time_to_load	0.128 ± 0.00032 s	0.129 ± 0.00045 s	0.994

Benchmark Plots

A plot of the benchmark results have been uploaded as an artifact to the workflow run for this PR.
Go to "Actions"->"Benchmark a pull request"->[the most recent run]->"Artifacts" (at the bottom).