Convert Closeable -> AutoCloseable

[soywiz]

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In Kotlin 1.8, AutoCloseable was included. A first step could be making Closeable extend AutoCloseable. And then typealiasing it. Expending the interface is okay, typealiasing it will be a binary-breaking change, and should be done only in major version changes.

[ygdrasil-io]

Context2d has a conflict with AutoCloseable. It inherit from VectorBuilder wich contains a close method. The close method will be deprecated in favor of closePath on 4.1.0 and remove on 4.2.0.