GCam Port: Dieflix apks

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ois20_fix_antibanding.apk (Dieflix, 2018-11-09, changelog)
OIS38.GC5.1.0.18_ver_1pt.apk (Dieflix, 2018-09-08, changelog)
OIS20.GC5.1.0.18_ver_1pt.apk (Dieflix, 2018-09-08, changelog)
OIS9.GC5.1.0.18_ver_1pt.apk (Dieflix, 2018-09-08, changelog)

Legend:
» Bold + red: One of the suggested versions.
» Bold: Known to be stable.
» Normal: Neutral.