feat: [FC-0070] [BE] Add API endpoint to manage course waffle flags #31005

Job	Run time
lms-1(py=3.11,dj=pinned,mongo=7.0)	10m 46s
collect-and-verify	4m 6s
lms-2(py=3.11,dj=pinned,mongo=7.0)	11m 38s
lms-3(py=3.11,dj=pinned,mongo=7.0)	15m 15s
lms-4(py=3.11,dj=pinned,mongo=7.0)	20m 26s
lms-5(py=3.11,dj=pinned,mongo=7.0)	11m 2s
lms-6(py=3.11,dj=pinned,mongo=7.0)	15m 48s
openedx-1-with-lms(py=3.11,dj=pinned,mongo=7.0)	11m 4s
openedx-2-with-lms(py=3.11,dj=pinned,mongo=7.0)	14m 40s
openedx-1-with-cms(py=3.11,dj=pinned,mongo=7.0)	8m 25s
openedx-2-with-cms(py=3.11,dj=pinned,mongo=7.0)	6m 35s
cms-1(py=3.11,dj=pinned,mongo=7.0)	4m 50s
cms-2(py=3.11,dj=pinned,mongo=7.0)	12m 48s
common-with-lms(py=3.11,dj=pinned,mongo=7.0)	8m 50s
common-with-cms(py=3.11,dj=pinned,mongo=7.0)	5m 56s
xmodule-with-lms(py=3.11,dj=pinned,mongo=7.0)	8m 56s
xmodule-with-cms(py=3.11,dj=pinned,mongo=7.0)	8m 42s
Unit tests successful	4s
compile-warnings-report	10s
coverage (3.11)	1m 41s
merge-artifacts	16s
	3h 1m 58s

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