- Renamed build script for brief target descriptor generation

- Created new TargetService class
- Moved brief target descriptor mapping to new TargetService class
- Replaced CMake custom commands with custom targets, for TDF validation and brief target descriptor generation build scripts
- Moved BriefTargetDescriptor into separate header file

src/Services/TargetService.hpp

@@ -0,0 +1,48 @@
+#pragma once
+
+#include <string>
+#include <map>
+#include <cstdint>
+#include <optional>
+#include <functional>
+
+#include "src/Targets/BriefTargetDescriptor.hpp"
+
+namespace Services
+{
+    class TargetService
+    {
+    public:
+        /**
+         * Performs a lookup for the given target configuration value, to retrieve the corresponding brief target
+         * descriptor object.
+         *
+         * @param configValue
+         *  The target configuration value to lookup.
+         *
+         * @return
+         *  A BriefTargetDescriptor object, if found, otherwise, std::nullopt.
+         */
+        static std::optional<Targets::BriefTargetDescriptor> briefDescriptor(const std::string& configValue);
+
+        /**
+         * Provides access to the internal mapping of the brief target descriptor objects of all targets supported by
+         * Bloom. See TargetService::descriptorsByConfigValue for more.
+         *
+         * @return
+         */
+        static const std::map<std::string, Targets::BriefTargetDescriptor>& briefDescriptorsByConfigValue();
+
+    private:
+        /**
+         * This mapping contains brief target descriptor objects for every target supported by Bloom, mapped by their
+         * configuration value. The contents is generated by a build script and stored in an ASCII text file, located
+         * at GENERATED_BRIEF_TARGET_DESCRIPTOR_MAPPING_PATH.
+         *
+         * See build/scripts/GenerateBriefTargetDescriptors.php and the root CMakeLists.txt for more.
+         */
+        static const inline std::map<std::string, Targets::BriefTargetDescriptor> descriptorsByConfigValue = {
+#include GENERATED_BRIEF_TARGET_DESCRIPTOR_MAPPING_PATH
+        };
+    };
+}