Create trie initialization workflow

[Viktor Todorov]

Create a workflow that ties together the following algorithms in a similar fashion to open_database:
https://github.com/smol-dot/smoldot/blob/377fdf027862b3d39f65b6883bea0edb96208f7b/full-node/src/lib.rs#L804-L809

• #242
• #243
• #244