Add quiz report visibility control for coaches #6193

Job	Run time
prnumber	2s
Build WHL file / Build WHL	8m 41s
Build EXE file / Build EXE file	57s
Build APK file / build_apk	11m 58s
Build DEB file / Build DEB file	5m 38s
Build DMG file / build_dmg	5m 56s
Build PEX file / Build PEX	43s
Build Raspberry Pi Image / Build Pi image	4m 1s
	37m 56s

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