Added comment schema

backend-services/comment-service-2/src/Database/Schemas/CommentSchema.ts

+import mongoose, { Schema } from "mongoose";
+
+/**
+ * Schema for representing a comment
+ */
+const CommentSchema = new Schema({
+  PostId: {
+    type: String,
+    required: true,
+  },
+  AuthorId: {
+    type: String,
+    required: true,
+  },
+  Content: {
+    type: String,
+    required: true,
+  },
+  IsPostAuthor: {
+    type: Boolean,
+    required: true,
+  },
+  LikerIds: {
+    type: [String],
+    required: true,
+  },
+});
+
+export default CommentSchema;