[Feature Request] Refactor Linear algebra service

[kMutagene]

Is your feature request related to a problem? Please describe. The LinearAlgebra module is a big mess. Many not implemented functions, naming has to be unified, unmanaged access to LAPACK functions are sparse.

Describe the solution you'd like Subproject FSharp.Stats.LAPACK (already existing as placeholder project) should contain the Lapack stubs and function access. LinearAlgebra.fs naming has to follow a convention. Drop MKL support and embrace netlib lapack as it is open source. Unify output types of managed and unmanaged versions of linear algebra functions

Describe alternatives you've considered Support MKL alongside Netlib LAPACK

[kMutagene]

related: #16