[WEB] Add group creation and registration fuctionality #1180

Job	Run time
Gradle Wrapper Validation	4s
API Docs Validation	9s
fbs-core.api / DB Migration Validation	2s
fbs-eat / Lint	43s
fbs-sql-checker / Lint	32s
fbs-eat / Test	25s
fbs-sql-checker / Test	24s
Build Docker images	4m 28s
fbs-core.api / Lint	36s
fbs-core.web / Lint	1m 14s
fbs-core.api / Test	2m 12s
fbs-core.web / Test	2m 18s
fbs-runner.checker / Lint	27s
fbs-runner.checker / Test	32s
	14m 6s

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