Fix fake call and discrepancy from cdr and queue_log on duration of answered calls

[andrea-marchionni]

• in the query that inserts data into report_queue_agents table, the correct row with the answered call data (dst_cnam, billsec, dstchannel, linkedid) was not returned because the result is not ordered, we need the first row, adding sorting by calldate solves the problem.

• rows with event (RINGNOASNWER) and data1 (0 or 1000) are fake calls caused by incorrect queue configuration (these are calls that theoretically rang 0 or 1000 milliseconds), we need to eliminate this data before doing the reporting calculations