Include more information in PROFILE steps

[nafraf]

This PR is to implement the feature #3002

Sample output:

127.0.0.1:6379> GRAPH.PROFILE movies "WITH 'Ham' AS text MATCH (a:Actor)-[r:ACTED_IN]-(m:Movie) WHERE a.name = 'Mark Hamill' AND 1+3 < (a.id%2=1)+(2*2+3) AND a.name contains text RETURN a"
1) "Results | Records produced: 0, Execution time: 0.000381 ms"
2) "    Project | Records produced: 0, Execution time: 0.000411 ms"
3) "        Conditional Traverse | (a)->(m:Movie) | Records produced: 0, Execution time: 0.000907 ms"
4) "            Filter | ((a.name = 'Mark Hamill' AND 4 < (((a.id % 2) = 1) + 7)) AND contains(a.name, text)) | Records produced: 0, Execution time: 0.000336 ms"
5) "                Node By Label Scan | (a:Actor) | Records produced: 0, Execution time: 0.050204 ms"
6) "                    Project | Records produced: 1, Execution time: 0.001210 ms"