read in a lagrit restart file
read /lagrit/file_name/[cmo-name]/[ascii binary]
cmo_name - ignored all mesh objects are read from the file
The default is ascii, but the code will determine file type if nessary.
read /lagrit/file1 file1 will be read as ascii. If the read fails to find the ascii check string, the file will be closed and reopened for a binary read. read /lagrit/file2//binary