Add document describing folder structure

docs/FolderStructure.md

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+# Folder structure
+
+This document is supposed to describe how i plan to handle the folder structure of the final modding tools.
+The result should be oriented at the original game's modding tools.
+
+```
+├───bin
+├───deffiles
+├───raw
+├───source_data
+├───zone_dump
+│   ├───source_data
+│   ├───zone_raw
+│   └───zone_source
+├───zone_raw
+└───zone_source
+```
+
+## bin
+
+Folder containing binaries for modding tools like Unlinker.exe, Linker.exe and any other.
+
+## deffiles
+
+Folder containing files (gdf) defining interface and properties of an asset managing tool.
+
+## raw
+
+Folder containing global raw assets that can be used while building any zone.
+
+## source_data
+
+Folder containing gdts containing asset data.
+Gdts can be referenced inside a zone definition file to be used inside a zone.
+
+## zone_dump
+
+Contains all data dumped using Unlinker which includes raw assets in ``zone_raw``, zone definitions in ``zone_source`` and gdts in ``source_data``.
+
+Separating the data of dumped files serves the purpose of separating it from manually created zones and prevents accidentally overwriting self created data.
+
+## zone_raw
+
+Contains raw assets that should only be used for a zone with the same name as its subfolder.
+Any contents must be inside appropriately named subfolders.
+So assets for a zone called ``my_mod`` must be in ``zone_raw/my_mod``.
+
+## zone_source
+
+A folder containing all zone definition files.
+Any definition file must have the name of the zone it describes.
+So if you want to create a zone with the name ``my_mod`` you need to describe it inside a zone definition with the path ``zone_source/my_mod.zone``.