feat: CalculatorController & CalculatorResponse first version

src/Controllers/CalculatorController.ts

+import {
+  Handler, Request, Response, Router,
+} from 'express';
+import AgeGroup from '../Models/AgeGroup';
+import CalculatorService from '../Services/CalculatorService';
+import CalculatorResponse from '../DTOs/CalculatorResponseDTO';
+
+const router = Router();
+
+const parseSheet: Handler = async (req: Request, res: Response) => {
+  const groups: AgeGroup[] = req.body;
+  try {
+    const energyRequirement: CalculatorResponse = CalculatorService.calculateREP(groups);
+    return res.status(200).send(energyRequirement);
+  } catch (error) {
+    const e = error as Error;
+    return res.status(400).json({ error: e.message });
+  }
+};
+
+router.post('/', parseSheet);
+
+export default router;

src/DTOs/CalculatorResponseDTO.ts

+import exp from 'constants';
+import AgeGroup from '../Models/AgeGroup';
+import EnergeticRequirement from '../Models/EnergeticRequirement';
+
+type CalculatorResponseDTO = {
+  requerimientosPorGrupo: Map<AgeGroup, EnergeticRequirement>;
+  requerimientoTotal: EnergeticRequirement;
+};
+
+export default CalculatorResponseDTO;