v0.4.2

SecondQuantizedAlgebra v0.4.2

Diff since v0.4.1

Merged pull requests:

• fix: double sum bugs (#40) (@coding-xyz)
• change example in read_me file (#41) (@ChristophHotter)
• numeric_average and to_numerics with dict argument; added method for … (#42) (@ChristophHotter)
• added algebra for the phase space variables x and p (#43) (@ChristophHotter)
• increase codecov for hilbertspace.jl (#44) (@ChristophHotter)
• added some utils for new operators; added more tests for spin.jl (#45) (@ChristophHotter)
• build: tag new version (#52) (@oameye)

Closed issues:

• type of name field (#39)