Nullable embedded entities

[thynson]

Issue type:

[ ] question
[ ] bug report
[x] feature request
[ ] documentation issue

TypeORM version:

[x] latest
[x] @next
[ ] 0.x.x (or put your version here)

Steps to reproduce or a small repository showing the problem:
I think it would be better to support nullable embedded entity.

class Name {
  @Column()
  first: string; // some times we don't want to specify nullable or not here
  @Column()
  last: string;
}

class Person {
  @Column(()=> Name, {nullable: true}) // we may need make the whole name optional here
  name?: Name
}

[imnotjames]

duplicate of #3913

[holm]

I can't really see how #3913 is a duplicate of this. This is about making columns on embedded columns nullable by setting the embedded column to nullable, the other is about updating all columns for an embed to null, but setting the embed to null.