Add sample haf application to see what hive.app_next_block does

Attaching gdb finally  to  consume_json_block_impl

Raise notice of hive.get_block_range_json finally working

consume_json_block_impl is reading  api_signed_block_object !

Add json_play.sql file connecting sql with c++

Sources moved into haf_manager extension, so debugging is in sync with code lines

db_open_args collected in a comment for now

database& init()

Add skip flags - micro_replay running (at least till block nr  300000)

Update hive hash