feat: Use SyncLists directly (delete overrides)

[paulpach]

Previously, you had to write an intermediary class to use synclists and syncdictionaries.

The weaver would populate that intermediary class with a serialization and deserialization method

This PR gets rid of 90% of the weaver code for synclists.
There is no need to generate these methods anymore.
Instead the lists use writer.Write<T> and read.read<T> to serialize their Data.

Since there is no code generate in synclists, you can now use the synclists directly instead
of subclassing them.

Same as #2305, but it removes the deprecated Serialize and Deserialize methods, in synclists.
This way you get a nice compiler error for code that won't work, instead of a warning you may accidentally ignore.

BEFORE:

public class MyComponent : NetworkBehaviour {
    // nonsense class to make the weaver happy
    class SyncListData : Synclist<Data> {}

    SyncListData mySyncList;
}

AFTER:

public class MyComponent : NetworkBehaviour {
    Synclist<Data> mySyncList;
}

BREAKING CHANGE: Serialize and Deserialize methods in synclists don't do anything anymore

[sonarcloud]

SonarCloud Quality Gate failed.

0 Bugs
0 Vulnerabilities (and 0 Security Hotspots to review)
0 Code Smells

91.7% Coverage
5.7% Duplication