Sparse-ir

[Diff since v0.94.4](https://github.com/SpM-lab/SparseIR.jl/compare/v0.94.4...v0.95.0)

- Removed composite bases and replaced them with augmented bases. See `src/augment.jl` for details.
- Removed the aliases `fermion` & `boson`, replace with `Fermionic()` and `Bosonic()`.


**Merged pull requests:**
- Replace composite bases with augmented basis (37) (Samuel3008)

[Diff since v0.94.3](https://github.com/SpM-lab/SparseIR.jl/compare/v0.94.3...v0.94.4)



**Merged pull requests:**
- Fix bugs with composite bases (34) (mwallerb)

[Diff since v0.94.2](https://github.com/SpM-lab/SparseIR.jl/compare/v0.94.2...v0.94.3)

[Diff since v0.94.1](https://github.com/SpM-lab/SparseIR.jl/compare/v0.94.1...v0.94.2)



**Merged pull requests:**
- Drop SpecialFunctions.jl in favor of Bessels.jl (33) (Samuel3008)

[Diff since v0.94.0](https://github.com/SpM-lab/SparseIR.jl/compare/v0.94.0...v0.94.1)



**Merged pull requests:**
- Add significance(basis) as a generalization of singular values. (32) (mwallerb)

[Diff since v0.92.0](https://github.com/SpM-lab/SparseIR.jl/compare/v0.92.0...v0.94.0)



**Merged pull requests:**
- Introduce type for Matsubara frequencies (30) (mwallerb)
- Add type alias for MatsubaraSampling (31) (shinaoka)