Add Bitchute extractor #370

Job	Run time
Build (linux, amd64)	43s
Build (linux, 386)	38s
Build (freebsd, amd64)	50s
Build (freebsd, 386)	35s
Build (openbsd, amd64)	45s
Build (openbsd, 386)	39s
Build (dragonfly, amd64)	35s
Build (windows, amd64)	30s
Build (windows, 386)	38s
Build (darwin, amd64)	36s
Build (linux, arm, 5)	31s
Build (linux, arm, 6)	35s
Build (linux, arm, 7)	41s
Build (linux, arm64)	38s
Build (linux, mips, softfloat)	50s
Build (linux, mips, hardfloat)	40s
Build (linux, mipsle, softfloat)	58s
Build (linux, mipsle, hardfloat)	32s
Build (linux, mips64)	47s
Build (linux, mips64le)	37s
Build (linux, ppc64)	29s
Build (linux, ppc64le)	45s
Build (linux, s390x)	35s
Build (windows, arm)	38s
Build (android, arm64)	42s
Build (darwin, arm64)	39s
Build (freebsd, arm64)	39s
	17m 45s

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