loader: update for 20.0.0/21.0.0

pgl/pm: add GetProcessId command

fatal: add new HashedTraceContext command

fs.mitm: add another game which needs stolen heap for layeredfs

ams.mitm: fix deadlock when building multiple romfs simultaneously (closes #1972)

fs.mitm: steal some heap when building romfs for kotor2 (closes #2564)

loader: add usb 3.0 enable patches for 20.1.0 (#2556) ...

* loader: add usb 3.0 enable patches for 20.1.0

boot: use --embed-dir for fusee embed

pm: update for fsp-pr RegisterProgram api change

boot: use #embed for fusee

fs.mitm: add and use memlet module to temporarily steal applet memory while building romfs images. ...

Starting in 20.0.0, the browser needs more applet memory to function, so we can't steal as much any more.
Thus, we now steal 14 MB on 20.0.0+ instead of 40MB.

However, since this reduces memory available for custom system modules, we are adjusting to compensate.
ams.mitm's heap size has been reduced from 32MB to 12MB (recovering 20MB).
In addition, fs.mitm now uses a new mechanism for stealing memory from the applet pool while romfs is being built.

On net, we are compromising:
    * Custom sysmodules lose memory available to them.
        On 19.0.0/AMS 1.8.0, there was 30 MB available for custom sysmodules.
        Stealing 14 MB instead of 40 MB, we lose 26 MB of that. Reducing ams.mitm's usage will gain us back 20.
        Nintendo also appears to...use 4 extra MB, in 20.0.0, from my test homebrew.
        So on 20.0.0/AMS 1.9.0, there should be 20 MB available for custom sysmodules.
        On the bright side, on <20.0.0/AMS 1.9.0, I guess there will be 50 MB available for custom sysmodules now?
    * totk mods will lose the ability to...put every file in the romfs on sd card. There will be some unknown maximum filecount for totk mods.
        On the bright side, implementing the transient memory stealing should improve compatibility for some mods which strictly add files?

ldr/pm: update for 20.0.0 abi changes

strat: update for fsp-ldr 20.0.0 changes

loader: add usb 3.0 enable patches for 20.0.0

Add extensions to dmnt cheat virtual machine (#2479) ...

* dmnt_extension

* update type 8 extension

* clearify that bit 27 does not correspond to a button

* update cheat.md with new code type 0xC4

* implement code type 0xC4

* Add type 1 extension

* remove C0Tcr6Ma aaaaaaaa VVVVVVVV (VVVVVVVV)

* Type 9 extension for floating point math

* updated according to review

strat: ldr::PlatformId -> ncm::ContentMetaPlatform

loader: add usb 3.0 enable patches for 19.0.0

ldr: ProgramInfo is 0x410 now, and fix debug flags for hbl

pm: add new 19.0.0 commands ...

This is functionally correct, but I have no idea what these are meant to represent.
These functions are completely unused on NX.

ns_mitm: update to support new 19.0.0 command

ro: support NROs with read-only first page

kern/ldr: add support for --x executables

kern/strat: update for new DebugFlags capability semantics

kern/creport: use mod0 to locate symbol table for all modules

creport: optimize ScopedFile performance

loader: update to reflect latest 18.0.0 changes ...

well, this sure is late, whoops

loader: add usb3 patches for 18.0.0

spl: add support for new spl:es command 33

dmnt: Fix debug log for cheats

dmnt.gen2: avoid data abort when too many breakpoints are created