feat: [EXC-1669] Propagate hook execution status to SystemState

[dragoljub-duric]

This PR is part of the OnLowWasmMemoryHook effort. Here we implement checking for hook condition and propagating hook status to SystemState.
Condition for executing hook, as agreed in interface spec discussion is:

1. In the case with memory_allocation min(memory_allocation - used_stable_memory, wasm_memory_limit) - used_wasm_memory
2. Without memory allocation wasm_memory_limit - used_wasm_memory

Hook status can be one of:

1. Condition is not satisfied
2. Ready for execution
3. Executed

The hook condition is checked whenever additional execution (stable or Wasm) memory allocation is requested.

After this change, we will have all the required information of SystemState and it will be necessary only to schedule hook execution in the following round.

This PR will be followed with:

1. EXC-1724 In which we will refactor SystemState::task_queue to be new struct with additional field on_low_wasm_memory_hook_status, to ensure that whenever available first task that will be poped form task queue is OnLowWasmMemoryHook (excluding paused executions). For that reason SystemState::on_low_wasm_memory_hook status is private, and we use set and get, so it can be easier encapsulated in the future TaskQueue struct.
2. EXC-1725 Schedule and execute OnLowWasmMemoryHook

[alin-at-dfinity]

LGTM, thank you.