Update packages and SDK upper limit

[Roaa94]

• Bumps SDK upper limit.
• Resolves some analysis issues.
• Replaces deprecated tester.binding.window APIs
• Update packages that had breaking changes:
  • The file_selector package replaces getSavePath with getSaveLocation.
  • The image package's fromBytes method uses named parameters and takes a ByteBuffer instead of Uint8List.
  • The fast_noise package now has a separate PerlinFractalNoise class for perlin noise fractal implementation and the previous PerlinNoise is the base noise object that only accepts frequency (see this PR description for more details)

Depends on #132 to be able to run tests.

Wasn't sure if it was best to break this PR down or not. Happy to do so if necessary.