Add 'testing' list.

This lists the packages that are currently undergoing testing.
Update 'gen-packages' script.

This updates the script with upstream repo checks, new output directory
names, and the name suffixes.
Fix 'realname' in 'clang-analyzer'.

The realname was set to 'clang-analyzer', when it should have been 'llvm'.
Fix 'realname' usage in 'ddrescue'.

'pkgname' was used instead of 'realname' for the install file name.
Fix 'wireshark-cli-archtrack' dependency in 'wireshark-gtk'.

'archtrack-wireshark-cli' -> 'wireshark-cli-archtrack'