700D multiple fixes/updates

- checked/updated/sorted stubs
- fixed display state bug (this is why brackets are nescessary)
- added firmware signature
- raw recording
raw_rec: minor fix when disabling unsupported options
Let's try TSKMON again
Undo c5393bbf1014 (it forces recompiling everything, which slows down the build process a lot). @frantony: please find a cleaner solution.
700D: more fixes/updates

- Fixed raw recording (HaCKed preview)
- Fixed HDR video recording
- Updated/sorted 'internals.h' (unsure about how I've sorted it?)
APS-C: fix raw video squeeze factor
src/debug.c: fix whitespaces
src/debug.c: fix "unused variable 'val0'" warning
src/bmp.c: fix whitespaces
src/bmp.c: fix "unused variable 'off'" warning
src/histogram.c: fix whitespaces
src/histogram.c: fix "unused variable 'ettr_stops'" warning
src/property.c: fix whitespaces
src/property.c: fix "'return' with a value, in function returning void"
700: Fixed tail lines
mem_spy: MEMX to MEM
mem_spy: bigger steps in start address selection, some help
raw_rec: remove bad 'squeeze' fix
Experimental focus peaking via DIGIC
Display menu cleanup: moved some less used stuff to Advanced menu