Results: Implement namespaced, type-safe results.

Because I was working on multiple things at once, this commit also:
- Adds wrappers for/linker flags to wrap CXX exceptions to make them
  abort. This saves ~0x8000 of memory in every system module.
- Broadly replaces lines of the pattern if (cond) { return ResultX; }
  with R_UNLESS(!cond, ResultX());.
- Reworks the R_TRY_CATCH macros (and the result macros in general).

stratosphere/dmnt/source/cheat/impl/dmnt_cheat_vm.cpp

@@ -631,7 +631,7 @@ namespace sts::dmnt::cheat::impl {
             /* However, I don't actually believe it is possible for this to happen. */
             /* I guess we'll throw a fatal error here, so as to encourage me to fix the VM */
             /* in the event that someone triggers it? I don't know how you'd do that. */
-            fatalSimple(ResultDmntCheatVmInvalidCondDepth);
+            R_ASSERT(ResultVirtualMachineInvalidConditionDepth());
         }
     }