Thelper

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* Updated common resnet impl to support segmentation heads
* Fixed samples usage for auto-weighting of loss functions
* Cleaned up samples usage in loader factory data splitter
* Add GDL compatibility module to geo package
* Fix segmentation task dontcare default color mapping
* Cleaned up and simplified coordconv implementation
* Update segmentation trainer to use long-typed label maps
* Cleaned up augmentor/albumentations demo configurations

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* Removed travis check in deploy stage for master branch

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* Added geo subpackage
* Added geo vector/raster parsing classes
* Added ogc module for testbed15-specific utilities
* Added testbed15 train/viz configuration files
* Cleaned up makefile targets & coverage usage
* Replaced tox build system with makefile completely
* Merged 3rdparty configs into setup.cfg
* Updated travis to rely on makefile directly

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* Added extra logging calls in trainer and framework utils
* Cleaned up data configuration parsing logger calls
* Bypassed full device check when specific one is requested

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* Moved drawing utilities to new module
* Cleaned up output root/save directory parsing
* Cleaned up potential circular imports
* Moved optional dependency imports inside relevant functions
* Added support for root directory specification via config
* Updated config load/save to make naming optional

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* Fixed potential issue when reinstantiating custom ResNet
* Fixed ClassifLogger prediction logger w/o groundtruth