GetAudioRendererSampleRate is set as a "STUB" as a game could check if the sample rate it sent and the sample rate it wants don't match. Just a thought of something which could happen so keeping it as stub for the mean time

This makes the Buffer::Tag usage consistent with the Stream class's
prototype of GetTagsAndReleaseBuffers().

We can just use type aliases to avoid needing to write the same long
type twice

Given std::function is allowed to potentially allocate, these should be
std::move'd to prevent potential reallocation (should that ever happen).

* CoreTiming: New CoreTiming; Add Test for CoreTiming

The current code inserts and deletes elements from the beginning of the audio buffer, which is very inefficient in an std::vector.

Profiling was done using VisualStudio2017's Performance Analyzer in Super Mario 3D Land.

Before this change: AudioInterp::Linear had 14.14% of the runtime (inclusive) and most of that time was spent in std::vector's insert implementation.
After this change: AudioInterp::Linear has 0.36% of the runtime (inclusive)

Modules didn't correctly define their dependencies before, which relied
on the frontends implicitly including every module for linking to
succeed.

Also changed every target_link_libraries call to specify visibility of
dependencies to avoid leaking definitions to dependents when not
necessary.

Also move address space mapping out of video_core.

Corrects a few issues with regards to Doxygen documentation, for example:

- Incorrect parameter referencing.
- Missing @param tags.
- Typos in @param tags.

and a few minor other issues.

* Support looping HLE audio
* DSP: Fix dirty bit clears, handle nonmonotonically incrementing IDs
* DSP: Add start offset support

```
In file included from citra/src/audio_core/sink_details.cpp:11:
citra/src/./audio_core/sdl2_sink.h:25:10: warning: 'SetDevice' overrides a member function but is not marked 'override' [-Winconsistent-missing-override]
    void SetDevice(int device_id);
         ^
citra/src/./audio_core/sink.h:39:18: note: overridden virtual function is here
    virtual void SetDevice(int device_id) = 0;
                 ^
```

* Initial Commit

Added Device logic to Sinks
Started on UI for selecting devices

Removed redundant import

* Audio Core: Complete Device Switching

Complete the device switching implementation by allowing the output
device to be loaded, changed and saved through the configurations menu.

Worked with the Sink abstraction and tuned the "Device Selection"
configuration so that the Device List is automatically populated when
the Sink is changed.
This hopefully addresses the concerns and recommendations mentioned in
the comments of the PR.

* Clean original implementation.

* Refactor GetSinkDetails

Previously there was a split where some of the services were in the
Service namespace and others were not.

This makes clang-format useful on those.

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