Move service API from TactilityKernel to service-module (#604)

Extracted the service API from TactilityKernel and put it in a new module at `Modules/service-module`

Modules/service-module/source/symbols.cpp

@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: Apache-2.0
+#include <tactility/module.h>
+#include <service/instance.h>
+#include <service/manager.h>
+#include <service/paths.h>
+
+const ModuleSymbol service_module_symbols[] = {
+    // service/service_instance
+    DEFINE_MODULE_SYMBOL(service_instance_construct),
+    DEFINE_MODULE_SYMBOL(service_instance_destruct),
+    DEFINE_MODULE_SYMBOL(service_instance_get_manifest),
+    DEFINE_MODULE_SYMBOL(service_instance_get_data),
+    DEFINE_MODULE_SYMBOL(service_instance_get_state),
+    // service/service_manager
+    DEFINE_MODULE_SYMBOL(service_manager_add),
+    DEFINE_MODULE_SYMBOL(service_manager_remove),
+    DEFINE_MODULE_SYMBOL(service_manager_find_manifest),
+    DEFINE_MODULE_SYMBOL(service_manager_start),
+    DEFINE_MODULE_SYMBOL(service_manager_stop),
+    DEFINE_MODULE_SYMBOL(service_manager_get_state),
+    DEFINE_MODULE_SYMBOL(service_manager_find_instance),
+    // service/service_paths
+    DEFINE_MODULE_SYMBOL(service_paths_get_user_data_directory),
+    DEFINE_MODULE_SYMBOL(service_paths_get_user_data_path),
+    DEFINE_MODULE_SYMBOL(service_paths_get_assets_directory),
+    DEFINE_MODULE_SYMBOL(service_paths_get_assets_path),
+    // terminator
+    MODULE_SYMBOL_TERMINATOR
+};
+
+Module service_module = {
+    .name = "service",
+    .drivers = nullptr,
+    .symbols = service_module_symbols,
+    .internal = nullptr
+};