Add Bitchute extractor #371

Job	Run time
Build (linux, amd64)	40s
Build (linux, 386)	32s
Build (freebsd, amd64)	1m 5s
Build (freebsd, 386)	43s
Build (openbsd, amd64)	42s
Build (openbsd, 386)	1m 5s
Build (dragonfly, amd64)	50s
Build (windows, amd64)	43s
Build (windows, 386)	29s
Build (darwin, amd64)	51s
Build (linux, arm, 5)	35s
Build (linux, arm, 6)	42s
Build (linux, arm, 7)	32s
Build (linux, arm64)	32s
Build (linux, mips, softfloat)	35s
Build (linux, mips, hardfloat)	29s
Build (linux, mipsle, softfloat)	30s
Build (linux, mipsle, hardfloat)	35s
Build (linux, mips64)	27s
Build (linux, mips64le)	32s
Build (linux, ppc64)	35s
Build (linux, ppc64le)	43s
Build (linux, s390x)	40s
Build (windows, arm)	30s
Build (android, arm64)	45s
Build (darwin, arm64)	38s
Build (freebsd, arm64)	46s
	17m 46s

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