Add components to EntryPoint catalog that are missing.

[montebhoover]

There are several new components in ML.NET that were not added to the EntryPoint catalog:

• MatrixFactorizationTrainer
• PermutationFeatureImportance
• GeneralizedAdditiveModels
• SsaSpikeDetector
• SsaChangePointDetector
• IidSpikeDetector
• IidChangePointDetector

To add these to the EntryPoint catalog, simply:

1. Add the SignatureEntryPointModule signature to the LoadableClass assembly attribute.
2. Create a public static method, that:
   1. Takes as input, among others, an object representing the arguments of the component you want to expose.
   2. Initializes and run the components, returning one of the nested classes of Microsoft.ML.Runtime.EntryPoints.CommonOutputs
   3. Is annotated with the TlcModule.EntryPoint attribute

[montebhoover]

These have been added:

SsaSpikeDetector
SsaChangePointDetector
IidSpikeDetector
IidChangePointDetector

[codemzs]

SsaSpikeDetector
SsaChangePointDetector
IidSpikeDetector
IidChangePointDetector

already have entry points.

@wschin @artidoro can you please confirm for:
MatrixFactorizationTrainer
PermutationFeatureImportance
GeneralizedAdditiveModels

[artidoro]

Gam also has entrypoints.

[najeeb-kazmi]

PermutationFeatureImportance also has an entrypoint (PR #4232). The only one remaining from this list is:

• MatrixFactorizationTrainer