Allow excluding view mode configuration in order to selectively override the display when needed.

@vaibhavjain I was able to reproduce the problem, in my case we don't want the module to change the view mode when we are using a preview, listing, etc. in a view, the module changes in all view modes to the view mode that is selected in the field, I am submitting a patch to apply the module only in the full/default view mode

Patch #4 works fine for me.
Indeed, in Views for content rendered by content display mode, if a different display mode from default is selected, it is correctly applied to contents that have default value selected in their view_mode_selection field. But, in the case of a content that has a different value than default selected in its view_mode_selection field, its render in a view will be the selected one in view_mode_selection field and not the one configured in the view.

#4 patch corrects this issue.