v1.0.0+1

What's Changed

• Replace Finalizer with ffi.NativeFinalizer by @rainyl in #21
• update Mat.toList(), Mat.toList3d<T, P>(), remove Mat.toList4D()
• update Mat.data, now return a view of data pointer, same as v0.6.*
• fix memory leak caused by Finalizer, now GC will also be triggered correctly in pure dart

Full Changelog: v1.0.0...v1.0.0+1