Changelog for Magisk 19.0 and Magisk Manager 7.1.0

Magisk 19.0 [General] Remove usage of magisk.img [General] Add 64 bit magisk binary for native 64 bit support [General] Support A only system-as-root devices that released with Android 9.0 [General] Support non EXT4 system and vendor partitions [MagiskHide] Use Zygote…