change azure engine config to modelMapper (#306)

* change azure engine config to azure modelMapper config

* Update go.mod

* Revert "Update go.mod"

This reverts commit 78d14c58f2a9ce668da43f6adbe20b60afcfe0d7.

* lint fix

* add test

* lint fix

* lint fix

* lint fix

* opt

* opt

* opt

* opt

moderation.go

@@ -63,7 +63,7 @@ type ModerationResponse struct {
 // Moderations — perform a moderation api call over a string.
 // Input can be an array or slice but a string will reduce the complexity.
 func (c *Client) Moderations(ctx context.Context, request ModerationRequest) (response ModerationResponse, err error) {
-	req, err := c.requestBuilder.build(ctx, http.MethodPost, c.fullURL("/moderations"), request)
+	req, err := c.requestBuilder.build(ctx, http.MethodPost, c.fullURL("/moderations", request.Model), request)
 	if err != nil {
 		return
 	}