Remove AutoMapper dependency and implement manual property mapping

[corpo-iwillspeak]

Due to the presence of CVE-2026-32933 in AutoMapper and the more restrictive licensing of AutoMapper after 15.0 this PR removes the use of AutoMapper completely and replaces it with two dedicated mapping methods.

Open to suggestions here.

---

This pull request removes the dependency on AutoMapper from the FastText.NetWrapper project and replaces its usage with custom mapping methods. This change simplifies the codebase and reduces external dependencies. The referenced version of AutoMapper contains a vulnerability and later versions have moved to a restrictive license.

Dependency removal:

• Removed the AutoMapper NuGet package from the project file FastText.NetWrapper.csproj and all related using AutoMapper; statements from code files. [1] [2] [3]

Code refactoring for argument mapping:

• Replaced AutoMapper-based mapping logic in FastTextArgs and its derived classes with a new MapFromStruct method for manual property assignment from FastTextWrapper.FastTextArgsStruct. [1] [2] [3]
• Removed static AutoMapper configuration and usage from the FastTextArgs class.
• Removed the AutoMapper instance and configuration from the FastTextWrapper class constructor. [1] [2] [3]
• Replaced all usages of AutoMapper for struct conversions in FastTextWrapper methods with new static mapping methods ToArgsStruct and ToAutotuneArgsStruct. [1] [2] [3] [4]

[corpo-iwillspeak]

This also solves half of your issues with #36 by removing the dependency.