Implemented a base of components

package-lock.json

package.json

src/App.tsx

src/layout/HSplit.tsx

src/layout/LayoutElement.tsx

src/layout/VSplit.tsx

src/meta/PanelContent.tsx

src/meta/PanelTitle.tsx

src/meta/PanelWrapper.tsx

src/meta/ScreenBar.tsx

src/meta/ScreenWrapper.tsx

src/panels/Fahrplan/Fahrplan.tsx

src/panels/Fahrplan/FahrplanPanel.tsx

src/panels/Fahrplan/components/PlanElement.tsx

src/panels/Fahrplan/components/ProgressIndicator.tsx