refactor(vd960Loop): 算法回退到 DLD154V4B，四通道适配

- 用 DLD154V4B vd1_task/per_channel 替换 vds_task 复杂算法
- 移除 FUNCTION_B/二次判断/快速变化/多重确认等增强特性
- 保留平坦性离开算法 (CN200910309382)，每通道独立状态
- 灵敏度表改为 DLD154V4B 4级: {216,108,36,10} / {108,72,18,9}
- 清理废弃类型: FltHistoryManager, Loop_ACS_Info, StageRangeConfig 等
- 首次添加 vd960DBN 完整源码

vd960DBN/SRC/Peripheral/inc/ch32v20x_pwr.h

@@ -0,0 +1,74 @@
+/********************************** (C) COPYRIGHT  *******************************
+ * File Name          : ch32v20x_pwr.h
+ * Author             : WCH
+ * Version            : V1.0.0
+ * Date               : 2021/06/06
+ * Description        : This file contains all the functions prototypes for the PWR
+ *                      firmware library.
+*********************************************************************************
+* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
+* Attention: This software (modified or not) and binary are used for 
+* microcontroller manufactured by Nanjing Qinheng Microelectronics.
+*******************************************************************************/
+#ifndef __CH32V20x_PWR_H
+#define __CH32V20x_PWR_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "ch32v20x.h"
+
+/* PVD_detection_level  */
+
+#define PWR_PVDLevel_MODE0          ((uint32_t)0x00000000)
+#define PWR_PVDLevel_MODE1          ((uint32_t)0x00000020)
+#define PWR_PVDLevel_MODE2          ((uint32_t)0x00000040)
+#define PWR_PVDLevel_MODE3          ((uint32_t)0x00000060)
+#define PWR_PVDLevel_MODE4          ((uint32_t)0x00000080)
+#define PWR_PVDLevel_MODE5          ((uint32_t)0x000000A0)
+#define PWR_PVDLevel_MODE6          ((uint32_t)0x000000C0)
+#define PWR_PVDLevel_MODE7          ((uint32_t)0x000000E0)
+
+#define PWR_PVDLevel_2V2            PWR_PVDLevel_MODE0
+#define PWR_PVDLevel_2V3            PWR_PVDLevel_MODE1
+#define PWR_PVDLevel_2V4            PWR_PVDLevel_MODE2
+#define PWR_PVDLevel_2V5            PWR_PVDLevel_MODE3
+#define PWR_PVDLevel_2V6            PWR_PVDLevel_MODE4
+#define PWR_PVDLevel_2V7            PWR_PVDLevel_MODE5
+#define PWR_PVDLevel_2V8            PWR_PVDLevel_MODE6
+#define PWR_PVDLevel_2V9            PWR_PVDLevel_MODE7
+
+/* Regulator_state_is_STOP_mode */
+#define PWR_Regulator_ON          ((uint32_t)0x00000000)
+#define PWR_Regulator_LowPower    ((uint32_t)0x00000001)
+
+/* STOP_mode_entry */
+#define PWR_STOPEntry_WFI         ((uint8_t)0x01)
+#define PWR_STOPEntry_WFE         ((uint8_t)0x02)
+
+/* PWR_Flag */
+#define PWR_FLAG_WU               ((uint32_t)0x00000001)
+#define PWR_FLAG_SB               ((uint32_t)0x00000002)
+#define PWR_FLAG_PVDO             ((uint32_t)0x00000004)
+
+void       PWR_DeInit(void);
+void       PWR_BackupAccessCmd(FunctionalState NewState);
+void       PWR_PVDCmd(FunctionalState NewState);
+void       PWR_PVDLevelConfig(uint32_t PWR_PVDLevel);
+void       PWR_WakeUpPinCmd(FunctionalState NewState);
+void       PWR_EnterSTOPMode(uint32_t PWR_Regulator, uint8_t PWR_STOPEntry);
+void       PWR_EnterSTANDBYMode(void);
+FlagStatus PWR_GetFlagStatus(uint32_t PWR_FLAG);
+void       PWR_ClearFlag(uint32_t PWR_FLAG);
+void       PWR_EnterSTANDBYMode_RAM(void);
+void       PWR_EnterSTANDBYMode_RAM_LV(void);
+void       PWR_EnterSTANDBYMode_RAM_VBAT_EN(void);
+void       PWR_EnterSTANDBYMode_RAM_LV_VBAT_EN(void);
+void       PWR_EnterSTOPMode_RAM_LV(uint32_t PWR_Regulator, uint8_t PWR_STOPEntry);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif