Bug 19263: Rancor - Add auto-001 widget

Bug 19263: Rancor - Add auto-001 widget

To test:

1 - Define a new authorised valued category "CONTROL_NUM_SEQUENCE"
2 - Add a value/sequence
    The authorised_value is the starting value - shoudl end in a number
    that can be incremented e.g. "control_sequence_001"
    The description field is the name for the seqeuence
    Opac description is unused
3 - Edit a record in rancor
4 - Note the new widget and option to increment or assign manually

Signed-off-by: Claire Gravely <claire.gravely@bsz-bw.de>
Signed-off-by: Josef Moravec <josef.moravec@gmail.com>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>