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/ro/source/ro_debug_monitor.cpp

@@ -24,9 +24,7 @@
 namespace sts::ro {
 
     Result DebugMonitorService::GetProcessModuleInfo(sf::Out<u32> out_count, const sf::OutArray<LoaderModuleInfo> &out_infos, os::ProcessId process_id) {
-        if (out_infos.GetSize() > INT_MAX) {
-            return ResultRoInvalidSize;
-        }
+        R_UNLESS(out_infos.GetSize() <= std::numeric_limits<s32>::max(), ResultInvalidSize());
         return impl::GetProcessModuleInfo(out_count.GetPointer(), out_infos.GetPointer(), out_infos.GetSize(), process_id);
     }