kern: optimize userspace access asm to use cheaper instruction in io memory loops

kern: use different psr masks for 64 and 32-bit El0 threads

kern: increase stack parameter size by 0x10

kern: update scheduler for new switch count tracking logic

kern/pm: only steal 8 MB from applet. ...

WebApplet crashes on exit with 16 more MB stolen, apparently.

romfs: thank you fire emblem, very cool (closes #2021)

kern: fix GetProcessId wrong result on invalid parameter

kern: update for new exception flag semantics

kern: use slab allocated KSessionRequest dynamic mappings

kern: implement Svc(Un)MapInsecureMemory

kern: move SecureAppletMemory/KPageBuffer heap into the ResourceRegion

kern: increase stack region size when thread resource limit is increased

kern: Implement new PageTable operations/PhysicalMemory reference semantics

kern: update for new device map semantics

kern: merge/simplify KInterruptEventTask into KInterruptEvent

kern: implement K(Secure)SystemResource

kern: optimize postfix-compare to prefix-compare, result logic is identical but breaks earlier in some paths

kern: mea culpa (some time since 7.x)

kern: implement revised IPI/SGI semantics

kern: update for new hw maintenance semantics

kern: implement new thread context/fpu semantics

kern: implement additional randomness in KPageHeap allocations

kern: enforce end of dram == end of partitions (move our probably outdated KTraceBuffer to new location)

kern: add new KCapability checks before creating process

kern: add InfoType_IsSvcPermitted

kern: enforce maximum secure region size

kern: print kernel backtrace on panic

pm/kern: update for 14.0.0

KThreadContext: Use El0PsrMask constant in GetUserContext

Integrate new result macros. (#1780) ...

* result: try out some experimental shenanigans

* result: sketch out some more shenanigans

* result: see what it looks like to convert kernel to use result conds instead of guards

* make rest of kernel use experimental new macro-ing