Using `misc/scripts/fix_headers.py` on all Godot files.
Some missing header guards were added, and the header inclusion order
was fixed in the Bullet module.
Re-order add_separator calls to stop adding an extra separator if no item was selected.
It is possible for no items to be selected by right clicking the ".." item.
Added icons for files/folders in drag preview
Fixed folders getting an empty string label
Don't show "1 more file(s)" label instead of the file
Added "more folders" case if moving folders exclusively
Merged drag_files and drag_files_and_dirs to reduce code duplication
Simplified get_drag_data_fw and removed commented out code
Call push_item before save_resource_as because the save button uses editor_history current.
Reject the drop in can_drop_data if it isn't on a folder or the files list.
Removed some duplicated code
If a folder would be moved to an invalid location disallow the drag
Don't treat dragging a file/folder to its current location as invalid
Allow dragging onto empty space / files in the files list
Fix dragging a folder onto "Favourites" starting an invalid move
DependencyRemoveDialog now takes two lists (files and folders) to delete.
Sort the folders above files in DependencyRemoveDialog & use some more icons.
Stop files which will be deleted from also being listed as having broken dependencies.
Add right-click option for removing folder to filesystem folder tree.
Move/rename don't depend on the path variable anymore.
Fixed dependencies not updating correctly when dragging folders in the folder tree.
Dependencies will only update for files which sucessfully moved.
Reduced code duplication between move & rename.
Added rename & move options to folders tree.
Disallow selecting ".." in the file-system dock.
Show In Explorer just uses this->path rather than trying to work it out from the item.
Add support for copy to path to folders .
Removed old commented out code.
Rename user facing methods and variables as well as the corresponding
C++ methods according to the folloming changes:
* pos -> position
* rot -> rotation
* loc -> location
C++ variables are left as is.
