schedule mainnet numeric asset names for block 332000
update CHANGELOG
enable multisig on mainnet from block 333000 (change free assets to this block, too)
Merge branch 'v9.47.0' into develop

Conflicts:
	CHANGELOG.md
	lib/util.py
	version.json
enable multisig on mainnet from block 333000 (change free assets to this block, too)

Conflicts:
	lib/util.py
	test/unit_test.py
	test/util_test.py
typo