feat: or operator implementation in query

Author: harshithad0703

src/lib/content-type.ts

@@ -1,7 +1,6 @@
 import { AxiosInstance, getData } from '@contentstack/core';
 import { Entry } from './entry';
 import { Entries } from './entries';
-import { Query } from './query';
 
 interface ContentTypeResponse<T> {
   content_type: T;

src/lib/query.ts

@@ -3,6 +3,8 @@ import { BaseQuery } from './base-query';
 import { BaseQueryParameters, QueryOperation, QueryOperator, TaxonomyQueryOperation } from './types';
 export class Query extends BaseQuery {
   private _contentTypeUid?: string;
+  private _subQueries: Query[] = [];
+
 
   constructor(client: AxiosInstance, uid: string, queryObj?: { [key: string]: any }) {
     super();
@@ -218,4 +220,15 @@ export class Query extends BaseQuery {
     this._parameters[key] = { '$exists': false };
     return this;
   }
+
+  or(...queries: Query[]): Query {
+    const combinedQuery: any = { $or: [] };
+    for (const query of queries) {
+      combinedQuery.$or.push(query._parameters);
+    }
+    const newQuery: Query = Object.create(this);
+    newQuery._parameters = combinedQuery;
+    
+    return newQuery;
+  }
 }