ddb_extmeta: Metadata stored externally in a sqlite database.

No guarantees. Use at your own risk. Breaking changes are almost certain when updating.

Made for private use only.



Building:

Requires `sqlite3.c` to be in the source directory.
It is the "amalgamation" source file mentioned in the README of sqlite's repository.
Example of how to get it:
	git clone https://github.com/sqlite/sqlite.git
	cd sqlite
	make sqlite3.c