feat(python): add cwe-328 weak hash rules #1362

Job	Run time
build (javascript/express)	2m 8s
build (javascript/hapi)	21s
build (javascript/lang)	3m 17s
build (javascript/node)	15s
build (javascript/react)	28s
build (javascript/third_parties)	1m 58s
build (ruby/lang)	3m 16s
build (ruby/rails)	1m 37s
build (ruby/third_parties)	3m 17s
build (java/lang)	3m 1s
build (java/spring)	19s
build (java/android)	15s
build (java/third_parties)	32s
build (php/lang)	3m 15s
build (php/symfony)	57s
build (php/third_parties)	1m 6s
build (python/django)	26s
build (python/lang)	1m 0s
build (go/lang)	59s
build (go/gosec)	2m 10s
build (go/gorilla)	17s
build (go/third_parties)	39s
	31m 33s

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