added dropdown for create org and added pie chart

inventory-manager/package-lock.json

inventory-manager/package.json

inventory-manager/src/App.jsx

inventory-manager/src/components/Navbar.jsx

inventory-manager/src/components/stats/OrgChart.jsx

inventory-manager/src/components/user/CreateOrganization.jsx

.../accessingdatamysql/org/CustomOrganizationRepository.java

...ava/com/example/accessingdatamysql/org/OrgController.java

...java/com/example/accessingdatamysql/org/Organization.java