Follow up to #3158

A nicer API build on top of the CEF API to make it easier to send/receive messages from DevTools.

The API is generated on top of the DevTools protocol to create a set of model classes to simplify executing DevTools commands.

• Add Strongly typed DevTools Domain classes
• Deprecated methods are not generated
• Only methods (no strongly typed events yet, a new issue should be created for that.)

The CefSharp.DevTools.DevToolsClient class is the primary method of accessing the different domains. Each DevTools Domain has it's own namespace that contains enums and strongly typed return classes.

Network Domain is part of the CefSharp.DevTools.Network namespace. The methods are accessibly though the DevToolsClient class.

Some basic examples look like (extract from the unit tests)

using (var browser = new ChromiumWebBrowser("www.google.com"))
{
	await browser.WaitForInitialLoadAsync();
	using (var devToolsClient = browser.GetDevToolsClient())
	{
		var response = await devToolsClient.Network.SetCookieAsync(name, value, domain: domain, sameSite: sameSite);
	}
}
using (var browser = new ChromiumWebBrowser("www.google.com"))
{
	await browser.WaitForInitialLoadAsync();
	using (var devToolsClient = browser.GetDevToolsClient())
	{
		var response = await devToolsClient.Browser.GetVersionAsync();
		var jsVersion = response.JsVersion;
		var revision = response.Revision;
	}
}