Updated package dependencies for flame_isolate.
Added support for TailoredIsolate and computeStream (called
isolateComputeStream in flame_isolate).
Updated the example package with new sprites created by yours truly, and
updated the license for the package, now that there is no assets with
copy-left CC license remaining.
### Migration instructions
Computation function is renamed from `isolate` to `isolateCompute`.
There are future breaking changes that are, as of now, mitigated with a
`@Deprecated` annotation with information regarding what function to use
instead.
Adding a bridge library for integral_isolates adding support for components to run CPU intensive code with a function similar to Flutter's compute function, but with a long lived isolate. Lifecycle is handled by the game loop, where the isolate would live between onMount and onRemove.
