Dependency manager powered export

[Tishj]

Continuation on #81

This PR will:

• Remove limitations on Alter, no Alter will be blocked by existing dependencies anymore(1)
• Add dependencies for Foreign Key constraints.
• Contain all the improvements regarding EXPORT DATABASE and Dependency management made by Fix EXPORT/IMPORT DATABASE schema.sql order duckdb/duckdb#8619

We introduce LogicalDependency as a precursor to PhysicalDependency, this merely contains the information needed to look up the catalog entry, so it's safe to serialize/deserialize

Inside SingleFileCheckpointWriter::CreateCheckpoint() there was a duplicate of GetNaiveExportOrder, this now uses the DependencyManager::GetExportOrder method

Views now create a dependency on the table they're referencing (as long as they are in the same catalog)
This changes some existing behavior, but is in line with postgres behavior

postgres=# drop table tbl;
ERROR:  cannot drop table tbl because other objects depend on it
DETAIL:  view vw depends on table tbl
HINT:  Use DROP ... CASCADE to drop the dependent objects too.

1: Indexes are not included in this, this requires some additional work that needs to be done outside of this PR