[js][bonus-01_base] Calculate user daily bonus

Author: rgomezcasas

examples/js/js-bonus-01_base/src/DailyBonusPointsCalculator.js

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+export class DailyBonusPointsCalculator {
+    POINTS_PER_DAY = 10;
+    
+    calculate(consecutiveDays) {
+        return consecutiveDays * this.POINTS_PER_DAY;
+    }
+}

examples/js/js-bonus-01_base/tests/DailyBonusPointsCalculator.test.js

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+import {DailyBonusPointsCalculator} from "../src/DailyBonusPointsCalculator";
+
+describe('DailyBonusPointsCalculator should', () => {
+    it('Calculate points for a user on its first day', () => {
+        const calculator = new DailyBonusPointsCalculator();
+        
+        expect(calculator.calculate(1)).toBe(10);
+    });
+    
+    it('Calculate points for a user on its second consecutive week', () => {
+        const calculator = new DailyBonusPointsCalculator();
+        
+        expect(calculator.calculate(14)).toBe(140);
+    });
+});