Added addExpense and addMonthlyIncome feature to new class

.gitignore

@@ -1 +1,2 @@
 /bin/
+/target/

UserCredentials.csv

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+username,password
+admin,"Password!123"
+Test1,"FirstTest1!"
+Test2,"SecondTest!2"
+Test3,"ThirdTest3!"
+Test4,"FourthTest!4"
+john,"mySecurePassword!123"
+joe,"mySecurePassword!123"

pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>edu.ferris.seng210</groupId>
+    <artifactId>ewallet</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>23</maven.compiler.source>
+        <maven.compiler.target>23</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+        <!-- https://mvnrepository.com/artifact/org.assertj/assertj-swing -->
+        <dependency>
+            <groupId>org.assertj</groupId>
+            <artifactId>assertj-swing</artifactId>
+            <version>3.17.1</version>
+        </dependency>
+
+        <!-- https://mvnrepository.com/artifact/org.junit.jupiter/junit-jupiter -->
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter</artifactId>
+            <version>5.12.1</version>
+            <scope>test</scope>
+        </dependency>
+
+        <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.dataformat/jackson-dataformat-csv -->
+        <dependency>
+            <groupId>com.fasterxml.jackson.dataformat</groupId>
+            <artifactId>jackson-dataformat-csv</artifactId>
+            <version>2.18.2</version>
+        </dependency>
+
+    </dependencies>
+
+</project>

requirements.md

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+# Requirements
+
+## User Stories
+
+- As a user I would like to provide an item and a price and get an estimate in number of months needed to save up to buy 
+this item (based on current monthly saving). 
+- As a user I would like to load multiple income from an external file all at once returning true if loaded successfully 
+and false otherwise.
+- As a user I would like to load multiple expenses from an external file all at once returning true if loaded successfully 
+and false otherwise.
+- As a user I would like to view my current balance in a different currency and back.
+- As a user I would like to choose a report and export it as an external file (any type is fine preferences are csv or JSON)
+- As  a user I would like to view a detailed report of expense of a certain type , and summary information for expenses
+- As  a user I would like to view a detailed report of income of a certain type, and summary information for income
+- As  a user I would like to view a detailed report of all income, and summary information for income
+- As  a user I would like to view a detailed report of all expenses, and summary information for expenses 
+- As  a user I would like to view a detailed report of all expenses, income, and summary information. 
+summary information include : total income, total income for each type, total income for each month, total expense, total expense for each type, 
+total savings (total income- total expenses) to date, if the total savings are less than zero it should be reported as total new debt. 
+- As a user I'd like to add a monthly income so I can track and report my income all year.
+- As a user I'd like to add a monthly expense so I can track and report my expenses