整理: 設定機能を API Router でモジュール化

[tarepan]

内容

設定機能をルーター関数（router()）に切り出してリファクタリング

router 生成関数の名称は #1156 に基づく。

関連 Issue

part of #501

[github-actions]

Coverage Result

Resultを開く

Name	Stmts	Miss	Cover
run.py	429	156
voicevox_engine/init.py	1	0
voicevox_engine/app/init.py	0	0
voicevox_engine/app/dependencies.py	9	0
voicevox_engine/app/routers/init.py	0	0
voicevox_engine/app/routers/preset.py	37	9
voicevox_engine/app/routers/setting.py	23	3
voicevox_engine/app/routers/user_dict.py	60	29
voicevox_engine/cancellable_engine.py	97	75
voicevox_engine/core/init.py	0	0
voicevox_engine/core/core_adapter.py	81	6
voicevox_engine/core/core_initializer.py	60	30
voicevox_engine/core/core_wrapper.py	228	160
voicevox_engine/dev/init.py	0	0
voicevox_engine/dev/core/init.py	0	0
voicevox_engine/dev/core/mock.py	65	2
voicevox_engine/dev/tts_engine/init.py	0	0
voicevox_engine/dev/tts_engine/mock.py	28	0
voicevox_engine/engine_manifest/EngineManifest.py	36	0
voicevox_engine/engine_manifest/EngineManifestLoader.py	11	0
voicevox_engine/engine_manifest/init.py	0	0
voicevox_engine/library_manager.py	92	4
voicevox_engine/metas/Metas.py	36	0
voicevox_engine/metas/MetasStore.py	28	1
voicevox_engine/metas/init.py	0	0
voicevox_engine/model.py	180	3
voicevox_engine/morphing.py	72	4
voicevox_engine/preset/Preset.py	13	0
voicevox_engine/preset/PresetError.py	2	0
voicevox_engine/preset/PresetManager.py	82	2
voicevox_engine/preset/init.py	0	0
voicevox_engine/setting/Setting.py	9	0
voicevox_engine/setting/SettingLoader.py	20	0
voicevox_engine/setting/init.py	0	0
voicevox_engine/tts_pipeline/init.py	0	0
voicevox_engine/tts_pipeline/kana_converter.py	88	1
voicevox_engine/tts_pipeline/mora_mapping.py	7	0
voicevox_engine/tts_pipeline/phoneme.py	34	0
voicevox_engine/tts_pipeline/text_analyzer.py	146	6
voicevox_engine/tts_pipeline/tts_engine.py	268	9
voicevox_engine/user_dict/part_of_speech_data.py	5	0
voicevox_engine/user_dict/user_dict.py	146	12
voicevox_engine/utility/init.py	0	0
voicevox_engine/utility/connect_base64_waves.py	37	0
voicevox_engine/utility/core_utility.py	6	0
voicevox_engine/utility/core_version_utility.py	8	1
voicevox_engine/utility/mutex_utility.py	13	0
voicevox_engine/utility/path_utility.py	26	6
voicevox_engine/utility/run_utility.py	10	7
TOTAL	2493	526

[Hiroshiba]

LGTM！！

コンフリクトを解消してマージします！