Robowflex v1.3

Benchmarking Overhaul + GNUPlotHelper (#216)

* Working on planning profiler

* simple profiler example + GNUPlot helper

* Added example box domain + more plotting options

* basic live plotting example, instance based plotting

* documentation + additional example

* live rviz visualization example, script options

* doc

* remove cond

* Result -> PlanData

* revamp of benchmarker to experiment

* updates for OMPL

* documentation + API changes

* kinetic fix

* starting benchmarking documentation

* addressing comments

* various metric improvements

* resources instead of fetch

* fixes to OMPL pipeline refresh for benchmarking

* change order of prerun + public refreshContext

* doc update

* documentation

* version bump

Co-authored-by: Constantinos Chamzas <chamzask@gmail.com>