Ships the tested upgrade script so clusters carried through pg_upgrade at
0.2 can reach 1.0 with ALTER EXTENSION pg_algorand UPDATE, without the
drop/recreate dance. CREATE OR REPLACE upgrades the two functions with
dependents in place; the three GetNFD* functions are dropped and
recreated because 1.0 renamed their parameters. Verified on betanet,
testnet x2 and mainnet upgrades (identical to a fresh 1.0 install).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019ACfCvu2UPpd6UcoK8cpW3