Todos about y-crdt HOT 6 CLOSED

• Create a method to insert several items at once (check for Rust's Vec method).
• Change Prelim.Array.integrate to use the above method

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• remove pub const TYPE_REFS_UNDEFINED: TypeRefs = 7; and use pub const TYPE_REFS_UNDEFINED: TypeRefs = 2^4-1;
• Add panic to the case of Text::remove_range()when remaining is > 0

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• Check whether rust strings count by byte size or by rune (C-FFI)

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• remove serde-serialize if possible
• add set_panic_hook again to the wasm bundle
• random number generator must only create 53bit u64 as clientid
• integrating several values into YArray should accept a mix of Types and Ranges (of values)

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• transaction.encode_update should encode only the changes that were applied during this transaction. Currently, we write the complete delete set. Make sure to compact the transaction.delete_set before writing it. The update event should be fired just before the transaction is free'd.

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• Prefer get_item_clean_start instead of split_block because the item should be added to tr.merge_items.

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