More Bone Functions For Holograms

This returns an array which contains the string names of every bone on
the model:
```
R = holoBones(n)
```

These can either take a number index or the string name of the bone:
```
A = holoBoneAng(n,n) #Returns world angle
A = holoBoneAng(n,s) #Returns world angle
holoBoneAng(n,n,a)   #Takes local angle
holoBoneAng(n,s,a)   #Takes local angle

V = holoBonePos(n,n) #Returns world vector
V = holoBonePos(n,s) #Returns world vector
holoBonePos(n,n,v)   #Takes local vector
holoBonePos(n,s,v)   #Takes local vector
```

These return the parent of the given bone (either by number index or string
name):
```
N = holoBoneParent(n,n)
S = holoBoneParent(n,s)
```