Merge branch 'develop' into feature/ticket1
update: bp method for ramification node is support.

Signed-off-by: Godai Azuma <godai0519@gmail.com>
refactoring: bp process's duplicated code.

maybe, ticket #1 is completed.

Signed-off-by: Godai Azuma <godai0519@gmail.com>
change: operator% and operator%= move into matrix_type class.

Signed-off-by: Godai Azuma <godai0519@gmail.com>
change: operator* and operator*= move into matrix_type class.

Signed-off-by: Godai Azuma <godai0519@gmail.com>
Merge branch 'feature/ticket1' into develop