Add g:NERDTreeFindResolveSymlinks for NERDTreeFind#1412

EvgeniyBlinov wants to merge 1 commit intopreservim:masterpreservim/nerdtree:masterfrom

EvgeniyBlinov:findAndRevealPath_symlink_resolveEvgeniyBlinov/nerdtree:findAndRevealPath_symlink_resolveCopy head branch name to clipboard