Added in preview 1 release notes (#7400)

Added 4.0.2 release notes (#7399)

Adding 4.0.1 servicing notes (#7365)

* adding 4.0.1 servicing notes

* adding missed pr

* reworded line

Update package versions in use by ML.NET tests (#7055)

Will backport this to the 3.0 branch too.

This also updates Newtonsoft which is a product dependency - but only
updates to the latest servicing release which we can do as a servicing
release ourselves.

added in release notes for 3.0.1 (#6963)

Co-authored-by: Michael Sharp <[email protected]>

Release notes for 3.0 (#6888)

* release notes 3.0

* Apply suggestions from code review

Co-authored-by: Jeff Handley <[email protected]>

* updates from pr

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Co-authored-by: Jeff Handley <[email protected]>

Adds the ability to load a pre-trained LightGBM file and import it in…

…to ML.Net. (#6569)

* need to finish multiclass

* multiclass

* reverting test for now

* reverting test for now

* added test and fixed objective parsing

* minor testing changes

Cherry picking PR that fixes official build. (#6468)

Merging since it has already been validated in the official build and is already in main.

Update versioning to 1.7.1 / 0.19.1 (#6122)

Update versioning to 1.7.1 / 0.19.1 (#6122)