- Refactored AVR8 constructor, moving TDF construction to the TargetControllerComponent

- The `TargetControllerComponent` now resolves the target via the new generated mapping approach
- Added `TargetDescriptionFile` derived class
- Removed obsolete JSON map processing code
- Other bits of refactoring and tidying

src/Services/PathService.hpp

@@ -51,6 +51,15 @@ namespace Services
             return PathService::projectDirPath() + "/.bloom";
         }
 
+        /**
+         * Returns the path to the directory containing Bloom's target description files.
+         *
+         * @return
+         */
+        static std::string targetDescriptionDirPath() {
+            return PathService::resourcesDirPath() + "/TargetDescriptionFiles";
+        }
+
         /**
          * Returns the path to the current project's settings file.
          *