feat: add mobile:webInspector to send webinspector command

[KazuCocoa]

Instead of #1455

I haven't tested yet, but I'd like to do somehing laster:

• Animation.enable,Animation.disable
• ApplicationCache.enable,ApplicationCache.disable
• DOMStorage.enable, DOMStorage.disable
• Memory.enable, Memory.disable
• Network.setEmulatedConditions

Perhaps this pr needs to have some documentation with a couple of example code.

I'm thinking to add this command to send some of webinspector commands
https://github.com/appium/appium-remote-debugger/blob/717a6310dba7ccf14db8aeef28b8eac3d7f6abf9/lib/protocol/index.js

Maybe it does not work fully, so we may need to append more code, or need to update the remote debugger side such as https://github.com/appium/appium-remote-debugger/blob/717a6310dba7ccf14db8aeef28b8eac3d7f6abf9/lib/rpc/remote-messages.js#L13.

example usage:

# Ruby client
@driver.execute_script 'mobile:webInspector', {method: 'Page.reload'}

[jlipps]

cool idea! why call it 'web inspector' and not something more like 'sendRemoteDebugCommand'? i'm unclear what it has to do with the web inspector

[KazuCocoa]

That was just picked from inspector https://github.com/WebKit/WebKit/tree/main/Source/JavaScriptCore/inspector and the directory's commits had Web Inspector. Can change the command naming anyway