[Epic] Support advanced paging/lro cases

[MaryGao]

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1. Support patch lro in modular #2314
   HRLC p0 +2
   
2. Support Page<T> in LRO response type in TypeSpec in RLC #1688
   Client DPG/RLC v2.0 GA Epic: Convenience methods with models P1 RLC +5
   
3. Support lro & paging operation in modular #2313
   HRLC P1 +2
   
4. Nested nextLink position
5. POST operation in nextlink
6. Specific operation in nextlink

Support advanced paging cases

Below cases are supported in TypeSpec yet, and should be supported with high priority.

• LRO & Paging
• Nested nextLink position

@pagedResult
  model Foo {
    boo: {
      @items
      things: string[];

      doo: {
        @nextLink
        next?: string;  
      }
    }
  }

• POST operation in nextlink

interface Foo {
        #suppress "@azure-tools/typespec-azure-core/use-standard-operations" "This is a test."
        @route("fooPage/")
        @get nextPage is Azure.Core.Foundations.Operation<{ nextLink: string }, Azure.Core.Page<MyResource>>;

        @nextPageOperation(Foo.nextPage, { nextLink: ResponseProperty<"nextLink"> })
        list is Azure.Core.ResourceList<MyResource>;
}

• Specific operation in nextlink