interfaces and pkg extensions for KrilovKit and ArnoldiMethods, potential deprecation of Arpack

Arpack v0.5.4 has been causing issues in the entire Julia ecosystem (starting from here and all the related issues https://github.com/JuliaLinearAlgebra/Arpack.jl/pull/120 ) We have put our compat bounds for Arpack to `0.5.0 - 0.5.3` We should really have a way to swap between these three for every place where they are used: - KrilovKit - ArnoldiMethod - Arpack Then benchmark each, document the results both in the docs and in docstrings, and set the best defaults Related: - https://github.com/qojulia/QuantumOptics.jl/issues/364 - https://github.com/qojulia/QuantumOptics.jl/issues/338 - https://github.com/qojulia/QuantumOptics.jl/issues/252 - https://github.com/qojulia/QuantumOptics.jl/pull/367 - https://github.com/qojulia/QuantumOptics.jl/issues/364#issuecomment-1858453445