Angular 8 ivy support

[fess-v]

Hi! I'm trying to use new angular engine - ivy, and getting an error:

ERROR in There is no typings path for SingleDatePickerComponent in C:/Users/bespa/WebstormProjects/frontend-wono/node_modules/angular-re act-dates/single-date-picker/single-date-picker.component.js. We need to add an export for this class to a .d.ts typings file because Angular compiler needs to be able to reference this class in com piled code, such as templates. The simplest fix for this is to ensure that this class is exported from the package's entry-point.

I found a possible solution here - angular/angular#29564 (comment)

Thank you!