Updated measurement tool
- added dX & dY measurements
- added functionality to copy le length measurement to the clipboard (system clipboard so it can be pasted to external software).
- changed the colour of the text for the Convert to Item option to Dark Navy so it is visible
I have changed 5 files: action-tools.cpp to update the tooltip clipboard.cpp & .h to add a function to be able to copy a string to the clipboard measure-tool.cpp & .h to make the necessary changes
See the attached pictures for how the Convert to Item option was looking before and for how the changes look visually.