Aligned the MARC editor subfields to 'start' fixes long subfield display

Aligned the MARC editor subfields to 'start' fixes long subfield display

When viewing a record in the MARC editor that has extremely long
entries in a subfield, the output would align in the center of the
subfield making the output hard to read.  This patch adds an
align: 'start' option to both the subfield, and the subfield code
elements in the marcSubfield function to make the subfields align in a
 more readable manner.
Signed-off-by: Liam Whalen <lwhalen@evergreen-dev.catalogue.nrcan.gc.ca>
Signed-off-by: Mike Rylander <mrylander@gmail.com>