feat(pkg/trie): TrieDB deletes

[dimartiro]

Changes

Add support for deletes in TrieDB. This deletes will delete nodes from our in-memory structure only.

Summary of changes

• [x] Create Delete method from KVStoreWrite interface as part of implementing write Trie interface
  • [x] Modify inspector to return optional InspectorResult
  • [x] Create removeInspector to perform trie insertions in our temporal structure
• [x] Create fix method to fix branches when we perform deletes and need to apply some transformation
• [x] Tests

Tests

make test

Issues

closes: #3929

[timwu20]

This deletes will delete nodes from our in-memory structure only.

Is there an issue to address deleting nodes from the underlying DB given this closes #3929?

[dimartiro]

This deletes will delete nodes from our in-memory structure only.

Is there an issue to address deleting nodes from the underlying DB given this closes #3929?

Good catch, I changed the issue description, I'm addressing everything related with the underlying DB in the commit issue #3993