-externalized colors

src/de/deadlocker8/budgetmaster/logic/Category.java

src/de/deadlocker8/budgetmaster/logic/CategoryBudget.java

src/de/deadlocker8/budgetmaster/logic/CategoryInOutSum.java

...eadlocker8/budgetmaster/logic/charts/CategoriesChart.java

.../deadlocker8/budgetmaster/logic/charts/MonthBarChart.java

...deadlocker8/budgetmaster/logic/charts/MonthLineChart.java

src/de/deadlocker8/budgetmaster/logic/report/ColumnType.java

...ker8/budgetmaster/logic/report/HeaderFooterPageEvent.java

...eadlocker8/budgetmaster/logic/report/ReportGenerator.java

...budgetmaster/logic/serverconnection/ExceptionHandler.java

src/de/deadlocker8/budgetmaster/logic/utils/Colors.java

src/de/deadlocker8/budgetmaster/logic/utils/FileHelper.java

src/de/deadlocker8/budgetmaster/logic/utils/Helpers.java

src/de/deadlocker8/budgetmaster/logic/utils/Strings.java

src/de/deadlocker8/budgetmaster/main/Main.java

src/de/deadlocker8/budgetmaster/main/_de.properties

...deadlocker8/budgetmaster/ui/cells/ButtonCategoryCell.java

src/de/deadlocker8/budgetmaster/ui/cells/PaymentCell.java

.../deadlocker8/budgetmaster/ui/cells/SmallCategoryCell.java

...ocker8/budgetmaster/ui/controller/CategoryController.java