Explode a structure

mystruc = expstruc(bigstructure);

Recursively expands the structure 'bigstructure' until data is found.

Returns a structure 'mystruc', containing two fields
1. 'name'; cell array of strings of the full name of the field
2. 'type' ; cell array of strings of the type of the field (double, logical, whatever)

Intended to be used with 'eval' for structure concatenation (code to follow).