Extensible Search Providers

Add search providers to the "user" settings file using Kiota commands.

```json
{
"search": [
{
"type": "apicurio",
"location": "https://example.org/apis/search?search={query}"
},
{
"type": "swaggerHub",
"location": "https://example.org/apis/search?search={query}"
},
{
"type": "apis.json",
"location": "https://random.org/apilist?search={query}"
},
{
"type": "api-catalog",
"location": "https://random.org"
}
]
}
```

We can add Search Providers to Kiota,

```shell

kiota addsearchprovider --name "apim" --type "AzureApim" --location "https://azure.azurewebsites.net/foo?search={query} "

kiota login apim

```

Darrel to to take a guess at prioritizing the list of potential search providers....Thanks Vincent.