Atlas Search index creation

[alexbevi]

Prerequisites

• I have written a descriptive issue title
• I have searched existing issues to ensure the feature has not already been requested

🚀 Feature Proposal

With NODE-5194 being available starting with v5.7.0 of the Node driver, Search index management helpers can be exposed via Mongoose as well.

Motivation

This would allow Search Indexes to be handled the same as other indexes (Schema level only though)

Example

const animalSchema = new Schema({
  name: String,
  type: String,
});

// schema level search index
animalSchema.searchIndex("searchIndex01", { mappings: { dynamic: true } }); 
// schema level search index with language analyzer
animalSchema.searchIndex("frenchSearchIndex01", 
   {
      mappings: {
         fields: {
            subject: {
               fields: {
                  name: {
                     analyzer: "lucene.french",
                     type: "string"
                  }
               },
               type: "document"
            }
         }
      }
   }
);