create distributed table set agent options from defaults

[tomatolog]

create statement create table d type='distributed' agent='127.0.0.1:9312:t' saves table description into manticore.json with values agent_connect_timeout and agent_query_timeout taken from the searchd options (defaults or user defined)

That is why after set other values at the searchd section will not affect distributed index and only way to change these options at the distributed index is to drop existed index and recreate it again.

[tomatolog]

it could be better to hide assess of the agent_connect_timeout and agent_query_timeout at the AgentConn_t with the getters and keep the original value defined by the create table like

struct AgentConn_t
{
...
int GetConTimeout () const { return ( m_iMyConnectTimeoutMs<0 ? g_iAgentConnectTimeoutMs : m_iMyConnectTimeoutMs ); }

however at the time of the save of the manticore.json save the real values