VFP: Log as trace to get rid of spamming.

OpenGL Hardware Renderer

Service::Y2R: Support for grayscale decoding of specific formats

Implements unrotated planar YUV 4:2:0 -> RGB24 conversions in Y2R.
Currently only the Y (luma) channel is used, so the results don't
contain color. This will be added in a later PR at some point.

This is enough to get all currently know Moflex videos to decode. (Some
don't display on-screen due to seemingly unrelated reasons.)

Thanks to @archshift for doing the initial implementation which I
cleaned up and then fixed the 8x8 block mode.

dyncom: Eliminate clang warnings

Gets rid of a whole load of missing brace initialization warnings.

ResourceLimit handles shouldn’t be waitable

Kernel: Fix a warning introduced with ResourceLimit, and remove the fallback code to prevent it from happening again.

Thread reschedule and MOFLEX fixes

Use condition var to properly pause the CPU thread

CFG: Update the cfg service to be like other integrated services

Adds support for threaded pausing so citra doesn't spin wait on pause

core/video_core: Fix a few warnings when compiling on MSVC.

Implement svcBreak

GPU/DefaultAttributes: Let the attribute data from the loaders overwrite the default attribs.

GPU/DefaultAttributes: Let the attribute data from the loaders overwrite the default attributes, if set.

closes #735

Delete unused hle/coprocessor.cpp

APT/FS: Remove asserts that were causing false positives in games

Common: Remove async logging

Update README.md, removing the old Roadmap link and adding the TODO list

Closes #759

dyncom: Add ARMv6K NOP and hint instructions to the interpreter.

dyncom: Minor cleanup.

Core/ResourceLimits: Implemented the basic structure of ResourceLimits.

Windows build fixes

Implemented svcs GetResourceLimit, GetResourceLimitCurrentValues and GetResourceLimitLimitValues.

Note that the resource limits do not currently keep track of used objects, since we have no way to distinguish between an object created by the application, and an object created by some HLE module once we're inside Kernel::T::Create.