feat: serde serialization and deserialization support for TinyWasmModule

[dragonnn]

This adds serde support to TinyWasmModule as discussed in #31. It doesn't pull any specific de/serialization format yet. No TinyWasmModule changes where need for enabling that.
I will add later some benchmarks serde+postcard vs rkyv.

[dragonnn]

Add a few benchmarks, on my machine I got those results:

argon2id_to_twasm                       time:   [119.92 µs 120.90 µs 121.80 µs]
argon2id_to_postcard_wasm       time:   [102.52 µs 102.69 µs 102.86 µs]
argon2id_from_twasm                  time:   [85.649 µs 86.601 µs 87.463 µs]
argon2id_from_postcard_wasm  time:   [81.646 µs 81.889 µs 82.421 µs]

fibonacci_to_twasm                       time:   [1.0138 µs 1.0142 µs 1.0145 µs]
fibonacci_to_postcard_wasm       time:   [975.92 ns 979.69 ns 983.51 ns]
fibonacci_from_twasm                  time:   [573.34 ns 573.62 ns 573.93 ns]
fibonacci_from_postcard_wasm  time:   [794.84 ns 796.40 ns 798.04 ns]

tinywasm_to_twasm                      time:   [3.5952 ms 3.6018 ms 3.6086 ms]
tinywasm_to_postcard_wasm      time:   [2.5932 ms 2.6109 ms 2.6333 ms]
tinywasm_from_twasm                 time:   [2.4116 ms 2.4305 ms 2.4504 ms]
tinywasm_from_postcard_wasm time:   [1.9223 ms 1.9239 ms 1.9257 ms]

Looks like serializing is slight faster with postcard then rkyv, deserializing looks like it might be a lite bit slower for small programs but faster for big ones? In both cases I would say the performance of it is acceptable