Feature: add flag to disable aggregation

[QuintenBruynseraede]

This PR adds support for the --aggregate flag for the table, graph and stats commands. It can be used to enable or disable the aggregation of multiple resources into one.

Default: aggregate = true

Examples:

tf-profile stats --aggregate=true  # Default
tf-profile table --aggregate false  # Will keep resources names as is, i.e. foo[0], foo[1], foo[2] instead of foo[*]
tf-profile table -a false  # Short hand
``