openflow_input: add bsn_debug_counter extension
loci: support bsn_debug_counter extension
update copyright year
debug_counter: replace of_table_name_t with of_str64_t
bsn_debug_counter: remove reset message
Merge into master from pull request #228:
bsn_debug_counter extension (https://github.com/floodlight/loxigen/pull/228)