[custom channels]: add decimal display to channel funding blob #3559

Job	Run time
Docker build check	3m 42s
Format check	25s
cross compilation	5m 0s
Compilation check	54s
run itests	9m 31s
run itests postgres	18m 21s
Lint check	2m 43s
migration version check	13s
go mod check	21s
RPC check	1m 11s
run LiT tests	13m 14s
sample configuration check	40s
Sqlc check	2m 49s
test vector check	53s
run unit tests (unit-race)	11m 32s
run unit tests (unit-cover)	3m 17s
run unit tests (unit dbbackend=postgres)	5m 57s
finish	6s
	1h 20m 49s

Provide feedback