Added 8 new example under "Logical Patterns".
Added 8 new example under "Logical Patterns".

slgobinath/siddhi,mohanvive/siddhi,sajithshn/siddhi,dilini-muthumala/siddhi,ksdperera/siddhi,miyurud/siddhi,ksdperera/siddhi,ramindu90/siddhi,mohanvive/siddhi,minudika/siddhi,gokul/siddhi,minudika/siddhi,tishan89/siddhi,codemogroup/siddhi,grainier/siddhi,slgobinath/siddhi,ChariniNana/siddhi,wso2/siddhi,ramindu90/siddhi,nadundesilva/siddhi,gokul/siddhi,suhothayan/siddhi,nadundesilva/siddhi,suhothayan/siddhi,grainier/siddhi,ChariniNana/siddhi,wso2/siddhi,dilini-muthumala/siddhi,miyurud/siddhi,tishan89/siddhi,codemogroup/siddhi,sajithshn/siddhi