[BioC] Multiple fields in Imagene data files

[Gordon Smyth]

Dear Imagene users.

Jean Yang and Agnes Paquet are currently helping me to implement reading of 
Imagene image analysis output files when there is more than one field on 
the arrays, e.g., as below.

Can we assume that all fields on the arrays will have the same number of 
Cols and Metacols? Does anyone know of counter examples?

Cheers
Gordon

--------------------------
	Begin Field Dimensions
		Field	Metarows	Metacols	Rows	Cols
		A	6	4	22	22
		B	6	4	22	22
	End Field Dimensions