Kernel/HLE: Use a mutex  to synchronize access to the HLE kernel state between the cpu thread and any other possible threads that might touch the kernel (network thread, etc).

This mutex is acquired in SVC::CallSVC, ie, as soon as the guest application enters the HLE kernel, and should be acquired by the aforementioned threads before modifying kernel structures.

Don't pull in entire JSON repo for single header file

telemetry: Log performance, configuration, and system data.

citra-qt: UI Themes

Enable data transfer over ENet

CMakeLists: Check that all submodules are present

Make enet use the same convention as other submodules

This makes it easier for packagers to preload all submodules.

load shared font from system archive

Update enet submodule

This includes a fix merged upstream to support mingw compilation

Telemetry: Submit logged data to the Citra service

Service/boss:P: Add some functions to FunctionTable