Scheduler cleanup

AM: Corrected the response in EnsureSaveData.

The values are still unknown and the function is still considered a stub.
Puyo Puyo Tetris now tries to call fsp-srv:MountSaveData.

Use Docker for Build Target clang-format for travis.

Kernel/IPC: Add a small delay after each SyncRequest to prevent thread starvation.

Make the fence handling in Vi a little less of a hack.

Ported from citra PR #3091

The delay specified here is from a Nintendo 3DS, and should be measured in a Nintendo Switch.

This change is enough to prevent Puyo Puyo Tetris's main thread starvation.

Updated Dynarmic

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.

Service/hid: stub some functions

This uses the (apparently) more stable Ubuntu Repo instead of the LLVM one.

pl_u: Add basic support for shared fonts.

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