Add documentation for streaming and display related functions #694

Job	Run time
Call Ledger guidelines_enforcer / Get workflow version / Get workflow version	5s
Call Ledger guidelines_enforcer / Retrieve application metadata / Retrieve application metadata	4s
Call Ledger guidelines_enforcer / Dispatch check	0s
Call Ledger guidelines_enforcer / Dispatch check / Clang Static Analyzer (stax)	1m 56s
Call Ledger guidelines_enforcer / Dispatch check / Clang Static Analyzer (nanos)	1m 38s
Call Ledger guidelines_enforcer / Dispatch check / Clang Static Analyzer (nanox)	1m 34s
Call Ledger guidelines_enforcer / Dispatch check / Clang Static Analyzer (nanosp)	1m 34s
Call Ledger guidelines_enforcer / Dump app information / Get application manifest for supported devices (stax)	1m 16s
Call Ledger guidelines_enforcer / Dispatch check / Check readme	6s
Call Ledger guidelines_enforcer / Dump app information / Get application manifest for supported devices (nanos)	1m 16s
Call Ledger guidelines_enforcer / Dump app information / Get application manifest for supported devices (nanox)	1m 11s
Call Ledger guidelines_enforcer / Dump app information / Get application manifest for supported devices (nanosp)	1m 16s
Call Ledger guidelines_enforcer / Dispatch check / Check APP_LOAD_PARAMS	7s
Call Ledger guidelines_enforcer / Dispatch check / Check Makefile	8s
Call Ledger guidelines_enforcer / Dispatch check / Check icons	8s
	12m 19s

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