Being able to change offerings (compute / Network / Disk)

##### ISSUE TYPE

* Feature Idea

##### COMPONENT NAME

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Service Offerings
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##### CLOUDSTACK VERSION

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4.18.1
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##### CONFIGURATION

N/A

##### OS / ENVIRONMENT

N/A

##### SUMMARY

##### STEPS TO REPRODUCE

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Try to edit for example the default egress rules under network offerings or adjust the storage type of the compute offerings from shared to local when using only local storage.
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##### EXPECTED RESULTS

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Being able to change those values so I do not need to create a new offering every time something needs to be adjusted.
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##### ACTUAL RESULTS

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There is no way to adjust anything besides the name, description.
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从 Service Offerings 组件开始，检查现有的编辑流程，该流程目前只允许更改名称和描述。定义对 compute、network 和 disk offerings 支持的更新，并验证每个请求的值都可以更改，而无需创建新的 offering。

由索引模型根据 Issue 内容生成。