TIle Based Segmentation with post-processing

Multiresolution segmentation involves a tile processing.
Uses a post-processing to reduce the artificats in the borders.
Multiresolution has one more parameter forit.
Merge pull request #4 from darioaugusto/master

json stuff
Merge with Dario's last commit
Merge fix
Graph integration and AWS operator support
Graph integration update
Update tile manager and aggregation features.