Embed monero.dart into monero_c

[MrCyjaneK]

This is a breaking change

pubspec.yaml should be updated to:

monero:
  git:
    url: https://github.com/mrcyjanek/monero_c
    ref: master # change me
    path: impls/monero.dart

• [x] Migrate xmruw
• [x] Migrate cake_wallet (https://github.com/cake-tech/cake_wallet/pull/1561)

[github-actions[bot]]

Invalid bindings found in monero.dart, make sure to run ./impls/monero.dart/update_bindings.sh

[github-actions[bot]]

Invalid bindings found in monero.dart, make sure to run ./impls/monero.dart/update_bindings.sh

[github-actions[bot]]

download libraries #10161978813

[github-actions[bot]]

download xmruw #10129651913

[github-actions[bot]]

download cake_wallet #10129651902