[msdfgen] Update to 1.10

[Chlumsky]

Updates MSDFgen to version 1.10.

Since version 1.10, the project itself has its dependencies managed by vcpkg, and this update also adds two new port features:

• extensions - previously on by default, now the only the core of the library can be built with no dependencies
• geometry-preprocessing - requires Skia, previously disabled

I am also not sure what the host vcpkg-cmake and vcpkg-cmake-config dependencies are for, can they be removed?

• What does your PR fix?

  Old version of MSDFgen port

• Which triplets are supported/not supported? Have you updated the CI baseline?

  All that are supported by the port's dependencies, no I haven't.

• Does your PR follow the maintainer guide?

  Yes

• If you have added/updated a port: Have you run ./vcpkg x-add-version --all and committed the result?

  Yes

[BillyONeal]

Thanks for the update!