Sample Dependency and Import fix

[robGG1997]

Describe the bug
Imported sample has dependencies to web3.Unity.auth package, which should be moved to the respective package

To Reproduce
Steps to reproduce the behavior:

1. Import web3.Unity package only (remove web3.Unity.auth package if it exists)
2. import samples
3. There's compile errors

Expected behavior
No compile errors/invalid dependencies in Samples

Screenshots

Desktop (please complete the following information):

• Chainsafe SDK version: 2.5
• Unity Platform: Windows
• OS: Windows

Additional context