Add new HookSwitch hook type

[Paul2803k]

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• This PR only contains minor fixes.
• This PR contains major feature update.
• This PR introduces a new function/api for Qiling Framework.

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[Paul2803k]

Hello everyone!

While using Qiling I stumbled across an interesting use case. I needed to start recording assembly instructions from a begin memory address to an end one. The existing hook_code didn't seem to be useful as the program counter could "jump" in and out of the defined range of memory.

My idea for this use case is to add a new HookSwitch type of hook. This would essentially act as a hook that the user can switch on and off by defining 2 memory addresses. Because it behaves like the base class Hook, not many changes are required for this to work properly and it should not break any of the existing code. For what it is worth, it works great in my project :)

The name of the hook itself wasn't well thought so feel free to recommend a new one if needed, same for the documentation that I added.

Cheers :)