Support Set-PSBreakpoint showing breakpoints in the editor

By creating a Proxy function of Set-PSBreakpoint, we can fire the breakpoint event as seen in the DAP spec to notify the client that a breakpoint has been added.

This is the really the final feature needed to provide the "console debugging in PSES experience" that feels totally integrated.

Creating a Proxy cmdlet is easy with:

$Metadata = [System.Management.Automation.CommandMetaData]::new((Get-Command Set-PSBreakpoint))
[System.Management.Automation.ProxyCommand]::Create($Metadata)

Then we'll need a way to give the EditorObject the state of the debugger... but mainly the JsonRpcServer object so that we can use it to send the SendNotification( method to send the breakpoint information to the client.

Then we take that proxy function and add something like:

$psEditor.Components
    .GetService([OmniSharp.Extensions.LanguageServer.Protocol.Server.ILanguageServer])
    .SendNotification("breakpoint", [OmniSharp.Extensions.DebugAdapter.Protocol.Events.BreakpointEvent]::new(<#...#>))

with some error handling and we should be good to go.

首先阅读 EditorObject.cs 以及 issue 中描述的 Set-PSBreakpoint 代理方案。跟踪如何访问 JsonRpcServer 或 ILanguageServer，然后查看 DAP 规范中的 BreakpointEvent 和所引用的协议类型。当通过 Set-PSBreakpoint 添加断点能够将断点信息通知编辑器，并包含错误处理时，即视为完成。