midiデコーダー実装中
あと2ndByteのデコードを実装

Signed-off-by: Kazusa Okuda <klamathcatalyst@gmail.com>
finish implementation midi-rx.

Signed-off-by: Kazusa Okuda <klamathcatalyst@gmail.com>
midi decoder bug fixed

Signed-off-by: Kazusa Okuda <kazusa@klamath.jp>
delete define no need variable

Signed-off-by: Kazusa Okuda <kazusa@klamath.jp>
merge into master brunch

Signed-off-by: Kazusa Okuda <kazusa@klamath.jp>
prepare next implement

Signed-off-by: Kazusa Okuda <kazusa@klamath.jp>