READ LTS IMAGE
Macro: I_OLIMLTS            
Function: To read non-standard images, without the '.ima' and '.des' files. 
Parameters:
1. Info on image
-- image file name
-- number of bytes in header
-- number of lines 
-- number of bytes per line 
-- number of values to be read per line 
-- number of bytes separating the values.
2. Image plane on which to load file.
