Proposal: Expose Middleware Information Through RouteInfo

[prajwalscodestack]

Gin already exposes route information through Engine.Routes(),
but RouteInfo currently contains only method, path and handler information.

In applications with nested route groups and middleware inheritance,
it can be difficult to determine which middleware are attached to a
specific route.

Would the maintainers be open to extending RouteInfo with middleware
information for debugging and route inspection purposes?

Example:

{
"method": "GET",
"path": "/api/v1/users",
"handler": "main.GetUsers",
"middlewares": [
"main.Auth",
"main.Logger"
]
}

I would be happy to investigate the implementation and submit a PR if
this aligns with Gin's goals.