[new rule]: Make sure enum value is equal with x-ms-enum value

### Lint rule description

Sometimes, swagger enum list is not equal with x-ms-enum values list. Please help to add a lint rule to check the discrepancy.

### Related swagger example

"PullRequestStatus": {
"type": "string",
"readOnly": true,
"enum": [
"unknown",
"submitted",
"merged",
"removed"
],
"x-ms-enum": {
"name": "PullRequestStatus",
"modelAsString": true,
"values": [
{
"value": "unknown",
"description": "Pull Request state unknown."
},
{
"value": "submitted",
"description": "Pull Request submitted to repository."
},
{
"value": "merged",
"description": "Pull Request merged into repository."
},
{
"value": "merged",
"description": "Workflow no longer found within repository."
}
]
},
"description": "The status of the Pull Request submitted against the users repository."
},

https://github.com/Azure/azure-rest-api-specs/pull/20863

### Category

SDK

### Severity level

Error

### Applies to

Management plane API spec, Data plane API spec, RPaaS API spec

### How to fix the violation

Consolidate the values of the enumeration.

### What't the impact if breaking the rule

Enumeration values are ambiguous which result in SDK cannot be generated successfully.