GCam Port: johngalt apks

PXv8.1_GCam-v1.1.apk (cstark27/Urnyx05, 2021-01-13)
PXv8.1_GCam-v1.0.apk (cstark27/Urnyx05, 2020-12-24)
42moto-g6-v3.0a1.apk (johngalt, 2019-04-19)
42moto-g6-v2.0.apk (johngalt, 2019-04-07)
42moto-g6-g.apk (johngalt, 2019-04-02)

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