hle: Remove unused romfs.cpp/.h

acc: Add missing function table entries for GetUserCount

hid: fix IsSixAxisSensorAtRest() response

Given this is stubbed within the common module in
5ac7b84, it should be added to the other relevant tables as well.

- Used by Pokken Tournament DX.

file_util: Avoid sign-conversions in WriteArray() and ReadArray()

These files are no longer used, so we can get rid of them.

externals/mbedtls: Update to mbedtls v2.12.0

Lowered down the logging for command processor methods

* Changed the sRGB pixel format return

* Add a message about SRGBA -> RGBA conversion

content_archive: Add support for titlekey cryptography

nvflinger: Correct typo in name of composition event

services/hid: Add ActivateNpadWithRevision() to the hid function info array

service/apm: Add the apm:sys service

qt/hotkey: Get rid of global hotkey map instance

CMakeLists: Make mbedtls and cubeb not install headers and libraries

nvflinger: Use std::string_view in OpenDisplay()

service/time: Amend command IDs of ToPosixTime() and ToPosixTimeWithMyRule()

Make building cubeb optional

 nvdrv: Get rid of indirect inclusions 

Prevents compiler warnings.

service: Add usb services

client_port: Make all data members private

externals: Update glad to 0.1.26

loader: Fix scope error in DeconstructedRomDirectory

Adds the basic skeleton of the apm:sys service based off the information
on Switch Brew.

The only reason this wasn't a compilation error is because we use
little-endian systems.

We don't need to use a std::string here, given all that's done is
comparing the character sequence against another. This allows passing
regular const char* without needing to heap allocate.

Updated based off the information on Switch Brew.

Updates the ID of these based off the information on Switch Brew.

Adds basic skeleton for the usb services based off the information provided by Switch Brew.

Instead, we make a proper registry class and house it within the main
window, then pass it to whatever needs access to the loaded hotkeys.

This way, we avoid a global variable, and don't need to initialize a
std::map instance before the program can do anything.