More martial arts techniques and tutorials in the AKBAN-wiki

We added more martial arts techniques in video to our database, the AKBAN-wiki.

* Budo Ninjutsu tutorial – Movement, Tai Sabaki
* 1st Ganseki, Underhook – Budo Ninjutsu tutorial
* Half guard pass by pushing the knee while sitting – A BJJ technique.
* Hook swipe to side control or mount – A BJJ technique.
* First gi choke
* Second gi choke
* Taking the back from turtle