palmpy v1.0.0 release

First official release of palmpy to start giving structure to the project.

What's Changed on top of previous, long unpublished state:

• added functionality to input vegetation as raster by @stefanfluck in #54
• Added capability to input 3d vegetation as a raster instead of shapefile. Set veg_format to shp or tiff and provide the shp in the namelist as resolvedforest etc, or the tiff under veg_raster.
• Added feature to define the name of the surface type attribute column in the shapefile the respective surface information is read from. Set src_luse_type for the vegetation/water shapefile, and srv_pav_type for the sealed surface file. Defaults are "OBJEKTART" and "BELAGSART" respectively to maintain backward compatibility.
• Fixed creation and immediate deletion of tmp.tif files in the github repo folder.
• Changed documentation to reflect changes.