API missmatch to python lists

[syntonym]

LoroList and LoroMutableList do not implement the same API as python lists. For API compatibility with the other Loro implementations, it makes sense to keep the current methods, but I suggest to implement additional methods:

• append
• remove
• pop(i) (currently LoroList.pop does not accept an index)
• index
• __iter__

There are additional list methods which could be implemented:

• extend
• __add__
• sort
• reverse

These methods all deal with multiple objects or rearrangements and could be "costly" to perform on the underlying CRDT. Maybe it makes sense to not implement these methods, to discourage costly operations.