message: [QuotaRP] Fix LimitObject polymorphism
  * Fix LimitObject polymorphism
  * move properties out of allOf
  * add type to LimitObject
  * value is required
  * Updating Operations Tag to QuotaOperations.
  * Update quota.json
  Updating Summary field for operations.
diff: },
  "/providers/Microsoft.Quota/operations": {
  "get": {
  - "summary": "GET operations.",
  + "summary": "GET quota operations.",
  "description": "List all the operations supported by the Microsoft.Quota resource provider.",
  - "operationId": "Operation_List",
  + "operationId": "QuotaOperation_List",
  "x-ms-examples": {
  "GetOperations": {
  "$ref": "./examples/GetOperations.json"
  "LimitObject": {
  "description": "The resource quota limit value.",
  "type": "object",
  + "x-ms-discriminator-value": "LimitValue",
  + "allOf": [
  + {
  + "$ref": "#/definitions/LimitJsonObject"
  + }
  + ],
  "properties": {
  "value": {
  "type": "integer",
  "format": "int32",
  "description": "The quota/limit value"
  },
  - "limitObjectType": {
  - "$ref": "#/definitions/LimitObjectTypes"
  - },
  "limitType": {
  "$ref": "#/definitions/LimitTypes"
  }
  "value"
  ]
  },
  - "LimitValue": {
  - "x-ms-discriminator-value": "LimitValue",
  - "type": "object",
  - "description": "The resource quota limit.",
  - "allOf": [
  - {
  - "$ref": "#/definitions/LimitJsonObject"
  - },
  - {
  - "$ref": "#/definitions/LimitObject"
  - }
  - ]
  - },
  "QuotaRequestOneResourceSubmitResponse": {
  "description": "Quota request response.",
  "type": "object",
  