first draft of GreedyPSO algorithm, need to fix for max non-overlapping coverage
now using intializeSensorOnPerimeter() function
test
GreedyPSO implementation working
added total coverage function and some code clean up
added updateOrigSensorsVec() function to display correct PSO result
split sensor_placement
Merge branch 'groovy_dev' into feature/Greedy-PSO_implementation
merge from groovy_dev to get bringup and config correctly
adjust stack description
Merge pull request #1 from ipa-mig/groovy_dev

fixing some bugs from renaming
manual mrge to get renaming and bugfixes from groovy_dev
deleted similar functions and fixed problem of clearing markers on rviz
added initializeCallback() function and did some code modifications
fixed solution visaulization marker conflict with search sensor (sensor no. 0)
manual merge from ipa-mig-mc to get bugfixes from renaming
another bugfix to avoid build-error
another bugfix to avoid build-error
Merge pull request #10 from ipa-mig-mc/feature/Greedy-PSO_implementation

feature/Greedy-PSO_implementation
Merge remote-tracking branch 'origin-ipa320/groovy_dev' into feature/3d_integration