The following Flow APIs have been added:
GET /birdges/{bridge_name}/tables
GET /birdges/{bridge_name}/tables/{table_id}/flows

Signed-off-by: Min Chen <minchnew@gmail.com>
Follows can be deleted through the API:
POST /bridges/br0/tables/0/flows/del, post flow as a parameter.

Signed-off-by: Min Chen <minchnew@gmail.com>
Flows can be added and updated through the following APIs:

POST /bridge/{bridge_name}/tables/{table_id}/flows/add
POST /bridge/{bridge_name}/tables/{table_id}/flows/update

Signed-off-by: Min Chen <minchnew@gmail.com>
Ignore fields whose value is not specified.

Signed-off-by: Min Chen <minchnew@gmail.com>
Flows are added to their corresponding table.

Signed-off-by: Min Chen <minchnew@gmail.com>
API "GET /bridges/br0/tables" returns a list of non-empty tables instead
of all the flows.

Signed-off-by: Min Chen <minchnew@gmail.com>
Fix a bug where flows of other tables are also found in table 0.

Signed-off-by: Min Chen <minchnew@gmail.com>
Flow Table tab is done.

Signed-off-by: lemon Li <lemon.li@pica8.local>
Signed-off-by: Ira Chen <ichen@pica8.local>
Flow Table tab done. Merged from master.

Signed-off-by: Lemon Li <lemon.li@pica8.local>
Signed-off-by: Ira Chen <ichen@pica8.local>