Splitting Bonsai code: This commit aims to divide Bonsai into two packages

- Common Classes with a Prefix: The common part will include classes prefixed with "DiffBased." These classes are designed to provide a base for both Bonsai and any future storage format that might use this diff-based approach.

- Bonsai's Specifics: Bonsai will retain its unique features in its own package. This means that while it shares the diff-based infrastructure with the common part, it also has its own specific functionalities that are not shared with other storage format.

- Extension to Verkle: this modification add the possibility of adding "Verkle" as a new storage format based on the diff-based architecture. Like Bonsai, Verkle would use the common diff-based classes but also have its own specific features.

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Signed-off-by: Karim TAAM <karim.t2am@gmail.com>
Signed-off-by: Karim Taam <karim.t2am@gmail.com>