Dirty push for new hierarchy and query chaining

aql/newHierarchy.go

+package aql

entity/hierarchyStruct.go

@@ -7,6 +7,18 @@ type Pdict struct {
 	Pointer  int
 }
 
+type Triple struct {
+	In  int
+	Rel int
+	Out int
+}
+
+type Tree struct {
+	Self     Triple
+	Parent   int
+	Children []int
+}
+
 func (p PdictList) Len() int {
 	return len(p)
 }