Changing the return structure of the tickData from array to dictionary

[deepgnly]

For efficient handling of the tickdata.

[rainmattertech]

Ah yes, this is the way to go, although this will be a major breaking change. We'll merge this once we figure out a way to roll out the changes.

[girishgupta211-zz]

Test case please

[hemangjoshi37a]

It is very good idea to return dictionary instead of the list.
Very good pull request sir.