* Add AppletAE, step 1: move common interfaces to am.h

* Add AppletAE, step 2

This function is used by libnx to obtain a new layer.

It'll be needed when we implement CreateManagedDisplayLayer.

* Stubs for various acc:u0 funcs needed

* Stub for GetDesiredLanguage in IApplicationFunctions

* Add set service + stubs needed for games

* Fix formatting

* Implement IProfile, IManagerForApplication, return bool in CheckAvailability, style fixes

* Remove IProfile::Get(needs more research), fix IPC response sizes

* Stub PopLaunchParameter and implement Buffer C Descriptors reading

* Address PR feedback

* Ensure we push a u64 not a size_t

* Fix formatting

# Conflicts:
#	src/core/hle/service/am/applet_oe.cpp
#	src/core/hle/service/apm/apm.cpp

Popping objects from the buffer is still not implemented.

This has a huge fallout in terms of needing to fix other files because
all service implementations included that file.

Updated based off information from 3dbrew.

This makes clang-format useful on those.

Also add a bunch of forgotten transitive includes, which otherwise
prevented compilation.