Added full finance tracker project code

Initial commit with README

Added JDBC postgres driver via dependency

Added JDBC postgres driver via dependency

txt file with Database creation code

Created hw5 and completed work

Made hw4. Completed task1 and task2

Made hw4. Completed task1 and task2

Запрос на слияние 'hw3' (#3) из hw3 в main

Completed task1, task2 and task3

Made hw3

Completed task1, task2 and task3