Investigate the necessity of warp memory

[piwonskp]

Warp memory was introduced due to the lack of mutability in cairo 0. Cairo 1 provides partial mutability. E.g. Arrays are appendable but elements within arrays are immutable. We should investigate if by creating mutable types we can get rid of warp memory entirely.

Examples of such solutions:

• Mutable types based on Felt252Dict https://github.com/enitrat/cairo_ds/blob/cba5827132909d2ab3ff4968af7d8fdb120c811b/src/data_structures/vec.cairo#L25
• Mutability by reconstructing data via convenience traits/functions

To consider:

• Performance of different solutions