UI: sliders for CPU and memory specifications of VMs

Good afternoon, if you create a Service Offering with Custom constrained or Custom unconstrained, where you specified CPU and Memory limits. For example, in Custom constrained I specified minCPU:1 and MaxCPU:40. I created a user user1, where I set CPU limit:7 for him.
It would be nice when the user selects Service offering - he could only choose between 1 and the specified limit (CPU limit). It would be nice if he moves the slider he could only choose a value between 1 and user CPU Limit.
Is it possible ?

從使用者選取 Service Offering 的 VM 建立流程開始，接著追蹤 offering 的 CPU 和記憶體限制如何暴露給 UI。定義受限和不受限自訂 offering 的行為，包括使用者的 CPU 限制；當兩個滑桿都阻止取值超出允許範圍，且相關測試涵蓋了該行為時，即視為完成。

由索引模型根據 Issue 內容生成。