megacommit:

- setup new UI layout using tiling and an action/message based system for updating global state based on interactions with individual tiles and vice versa
- added custom dialogs and UI helpers to create a more cohesive UI
- added a disassembler widget (WIP)
- added a documentation widget (WIP)
- refactored backend halt/pause logic to fix bugs.
- started emulator implementation documentation (to complement the ISA spec)

dsa/emulator/emulator_ui/Cargo.toml

@@ -32,6 +32,9 @@ dirs = "6.0.0"
 assembler = { path = "../../assembler" }
 egui_extras = "0.35.0"
 emulator_core = { version = "0.3.0", path = "../emulator_core" }
+disassembler = { version = "0.3.0", path = "../../disassembler" }
+egui-file-dialog = "0.14.1"
+egui_commonmark = { version = "0.24.0", features = ["better_syntax_highlighting", "macros"] }
 
 [features]
 default = ["mainstore-prealloc"]