sync from tranc@162
ShellLib.h not needed in Patches_for_EDK2
Review ApfsDriverLoader
Update changes to build_rule.txt made in edk2 from 2019-02-14 through 2019-07-12
Upgrade GCC to 9.2
Fix compilation of BlockIoDxe
Discard unintended svn:eol-style and svn:keywords
sync edk2 github tag edk2-stable201908 (no longer in svn)