Games like Puyo Puyo Tetris and BOTW seem to depend on the buffer always having the same handle

This may break libnx homebrew due to a bug in libnx but is required by official games since they always assume that the buffer will be there.

Refactor IPC buffer descriptor interface

Fix fps counter to correctly measure frame end when there was no frame to draw

debugger: Fix wait_tree crash.

core: Silence formatting specifier warnings

maxwell_3d: Make constructor explicit

GPU: Partially implemented the QUERY_* registers in the Maxwell3D engine.