Port citra-emu/citra#4164: "citra_qt, video_core: Screenshot functionality"

common/quaternion: Ensure that w is always initialized

am: Implement HLE profile selector applet

configure_input: Add Controller Setup Profiles and simplify input UI

Previously xyz was always being zero initialized due to its constructor,
but w wasn't. Ensures that we always have a deterministic initial state.

Fixed uninitialized memory due to missing returns in canary

Texture format fixes for RGBA16UI for copies and R16U when used as depth

kernel/{process, thread}: Amend behavior related to IDs

service/am: Unstub GetAppletResourceUserId

Device handle should not be a random id, instead it's the current npad id

Fix arrayed texture LOD selection and depth comparison ordering

service/sm: Improve debug log for RegisterService

If a thread handle is passed to svcGetProcessId, the kernel attempts to
access the process ID via the thread's instance's owning process.

Technically, this function should also be handling the kernel debug
objects as well, however we currently don't handle those kernel objects
yet, so I've left a note via a comment about it to remind myself when
implementing it in the future.

kernel/svc: Implement svcSetMemoryAttribute

With all the basic backing functionality implemented, we can now unstub
svcSetMemoryAttribute.

This puts the backing functionality for svcSetMemoryAttribute in place,
which will be utilized in a following change.

vm_manager: Add member function for checking a memory range adheres to certain attributes, permissions and states

Starts the process ID counter off at 81, which is what the kernel itself
checks against internally when creating processes. It's actually
supposed to panic if the PID is less than 81 for a userland process.

The service call uses a 64-bit value, just like svcGetProcessId. This
amends the function signature accordingly.

The kernel uses a 64-bit value for the thread ID, so we shouldn't be
using a 32-bit value.

svcGetProcessId's out parameter is a pointer to a 64-bit value, not a
32-bit one.

In the actual kernel, this is a 64-bit value, so we shouldn't be using a
32-bit type to handle it.

Found during hardware testing

Functions which are suppose to crash on non canary builds usually don't return anything which lead to uninitialized memory being used.

Now it also indicates the name and max session count. This also gives a
name to the unknown bool. This indicates if the created port is supposed
to be using light handles or regular handles internally. This is passed
to the respective svcCreatePort parameter internally.

Allows capturing screenshot at the current internal resolution (native for software renderer), but a setting is available to capture it in other resolutions. The screenshot is saved to a single PNG in the current layout.

Texture format fixes: Flag RGBA16UI as GL_RGBA_INTEGER format, and interpret R16U as Z16 when depth_compare is enabled.

kernel/thread: Set default fpcr

arm_dynarmic: Set CNTFRQ value

shader_bytecode: Fixup half float's operator B encoding

applets: Correct usage of SignalStateChanged event

Implement postfactor multiplication/division for fmul instructions

This is supposed to return the current process' ID. (0 indicates an
invalid ID for both process IDs and ARU IDs).

Fix arrayed shadow sampler array slice/depth comparison ordering, as well as invalid GLSL LOD selection.

This is shorter and more concise. This also removes the now-innaccurate
comment, as it's not returned wholesale to svcQueryMemory anymore.