v1.1.0

QuantumAlgebra v1.1.0

Diff since v1.0.1

Closed issues:

• Define multiple fermion operators (#9)

Merged pull requests:

• add macro to define a group of mutually anticommuting fermionic operators (#11) (@jfeist)
• fix setup of default operators (a, adag, f, fdag, σx, σy, σz, σp, σm) on julia <1.6 (#12) (@jfeist)