feat: Add logs schema

Co-authored-by: Iro Athina Valagouti <iro_valagouti@yahoo.gr>

src/schemas/logs.schema.ts

@@ -0,0 +1,7 @@
+import * as mongoose from 'mongoose';
+
+export const LogsSchema = new mongoose.Schema({
+    drone_id: { type: Number },
+    gprmc: { type: String },
+    sensorReadings: { type: Object }
+}, { timestamps: true });