testing, gdbstub, plugin and gitdm updates - cleanup scripts/ci/setup in advance of ppc64 runner - ensure detected gdb reported to TCG tests - update hexagon container with build deps - generate fedora-win[32|64]-cross with lcitool - move alpine container to tagged release - fix overflow during qos-test test tree iteration - allow bios blobs to be built with test cross compilers - introduce monitor_puts for plain strings - share disas code between monitor and plugins - fix bug in execlog plugin - add more tcg plugin documentation, reorg - fix link to semihosting spec - re-factor gdbstub to use AccelClass/Ops - many gitdm updates - fix race with plugin mutex lock and linux-user fork()