Investigate if memory allocation can be optimized

[hariso]

Feature description

This feature request comes from the following PR comment: #2 (comment).

Summary: When memory in the WASM module is allocated and free, it's always being done with new byte slices. We should investigate if it's possible to do with a single byte slice which will be reused for all the commands and responses, to minimize the number of allocations.

[lovromazgon]

Done in #7.