* Devtools: Pause system
* Devtools: pm4 viewer
- new menu bar
- refactored video_info layer
- dump & inspect pm4 packets
- removed dumpPM4 config
- renamed System to DebugState
- add docking space
- simple video info constrained to window size
* Devtools: pm4 viewer - add combo to select the queue
* Devtools: pm4 viewer - add hex editor
* Devtools: pm4 viewer - dump current cmd
* add monospaced font to devtools
* Devtools: pm4 viewer - use spec op name
avoid some allocations
