Ceramic Core module refactor

[simonovic86]

• create separate module for Pinning implementation(s)
• create separate module for AnchorService implementation(s)

[oed]

Why was this closed? I thought this ticket was about separating the Pinning and Anchor modules into separate packages?

[simonovic86]

It's closed by mistake. Thanks!

[simonovic86]

chore color is similar to the issue :)