Expose proof base64 conversion #4896

Job	Run time
Prepare	2m 7s
Build-And-Test-Web	5m 9s
Run unit tests parallel (1)	1m 2s
Check-mina-commit	11s
Run unit tests parallel (2)	19m 13s
Build-And-Test-Server (Simple integration tests)	17m 1s
Run unit tests parallel (3)	5m 10s
Build-And-Test-Server (Reducer integration tests)	8m 10s
Run unit tests parallel (4)	13m 23s
Build-And-Test-Server (DEX integration tests)	9m 2s
Run unit tests parallel (5)	17m 12s
Build-And-Test-Server (DEX integration test with proofs)	9m 35s
Run unit tests parallel (6)	9m 47s
Build-And-Test-Server (Voting integration tests)	3m 53s
Build-And-Test-Server (Verification Key Regression Check 1)	7m 34s
Run unit tests parallel (7)	7m 43s
Build-And-Test-Server (Verification Key Regression Check 2)	7m 57s
Run unit tests parallel (8)	2m 31s
Build-And-Test-Server (CommonJS test)	1m 24s
Build-And-Test-Server (Unit tests)	1s
Release-mina-signer-on-NPM	0s
Release-on-NPM	0s
	2h 28m 5s

Provide feedback