Move away from hand made wasm code and use walrus crate to construct wasm bytes using a DSL

As part of #3585 non-trivial wasm was made by hand to ensure we have precise control costs of specific wasm opcodes. The only reliable way to do that is to construct wasm by hand - and writing nontrivial wasm by hand is hard, especially if you do a lot of labels, recursive code generators, parametric blocks etc. Walrus https://docs.rs/walrus/latest/walrus/ is official rustwasm project for dealing with manipulation of wasm modules. One of the features is a DSL to write wasm by hand to ensure compile time safety which decreases time to develop new wasms by orders of magnitude. Here’s an example that can be followed from their repo https://github.com/rustwasm/walrus/blob/9d6c9de432d6a97478dc76ebdf18aed51584c3af/examples/build-wasm-from-scratch.rs
As their module manipulation APIs have much less boilerplate code, and emphasizes on safety, there are less ways to shoot ourselves in the foot compared to parity wasm utils. (which bite us numerous times in past). In a future when we took over pwasm-utils we could attempt to port gas injector, and stack height limiters to walrus and observe less code, and also less foot guns.