Add new 'Transform'

[bonomani]

We would like to add a line in a table like the average of CPU in the first row
We could do something like the following...just ideas!

CPU			SORT by index (if not incresing by +1)			ADD LEAF()			INDEX			MATH (INDEX+1) % COUNT(CPU) +1			CHAIN (MATH,ADD)
1.1.1.1	10	x		1	x		1	x		1	1		1	2		1	AVG CPU
1.1.1.1	20	y		2	z		2	y		2	2		2	3		2	x
1.1.1.1	30	x		3	z		3	z		3	3		3	4		3	y
							4	AVG CPU		4	4		4	1		4	z

A little bit complex....a simpler solution could be to have:
An ADD transform with at-pos(0.1)
And a SORT transform with numerical (only alpha now) sorting and precision 1, ...need also a padding (auto?) because of Xymon limitation

ADD Function
argument

1. non-repeters at position default is end
2. non-repeters other?
3. Repetes

SORT Function
Sort by val
Sort by key is a function composition:

OID			INDEX			SORT by val			CHAIN(SORT by val,OID)
1.1.1.1	10	x		10	10		1	10		1	x
1.1.1.1	20	y		20	20		2	20		2	y
1.1.1.1	30	x		30	30		3	30		3	x