State Snapshot API

[poulok]

Create an API that supports the following operations regarding States:

• Load a state from disk into memory
• Save a state in memory to disk (snapshot creation) in 100% protobuf format
• Ability to maintain multiple states in memory concurrently

Tasks

Beta Give feedback

1. Implement Snapshot API method #15154
   Platform +1
   
2. Implement Load Snapshot method #15155
   Platform +1
   
3. Remove all usages of ConfigurationHolder in the state #15315
   Platform +1
   
4. Remove all other static references in the state #15316
   Platform +1
5. Create a plan for removing all static references in the state #15317
   Platform +1
   
6. Add support for multiple concurrent states in memory #15308
   Platform +1
7. Delete TestConfigBuilder and HederaTestConfigBuilder classes #15639
   Platform +1
8. Delete ConfigurationHolder and DefaultConfiguration classes #15640
   Platform +1
9. Fix static field initialization from a non-static method in the merkledb package #15945
   Platform Platform Data Structures Tech Debt Reduced +3
10. Fix static field initialization from a non-static method in the virtualmap package #15946
    Platform Platform Data Structures Tech Debt Reduced +3