堆内存算法支持多段非连续性内存区域 · Pull Request !249 · OpenHarmony/kernel_liteos_m

### 相关的Issue
https://gitee.com/openharmony/kernel_liteos_m/issues/I43XOP?from=project-issue
  
### 原因（目的、解决的问题等）
需求实现。

### 描述（做了什么，变更了什么）
1、多块内存区域地址不连续，地址偏差Gap视为虚拟已使用节点，把多个内存块作为独立内存池进行管理。
2、内存维测功能适配多块非连续内存区域。

### 测试用例（新增、改动、可能影响的功能）

用例运行结果：

entering kernel init...
LiteOS heap memory address:0x200001ec, size:4096

Entering scheduler
	
 --- Test Start ---

[Passed]-ItLosMem001-LOS-MEM-LEVEL1-FUNCTITON
  [Passed]-ItLosMem002-LOS-MEM-LEVEL1-FUNCTITON
  [Passed]-ItLosMem003-LOS-MEM-LEVEL1-FUNCTITON
  [Passed]-ItLosMem004-LOS-MEM-LEVEL0-FUNCTITON
  [Passed]-ItLosMem006-LOS-MEM-LEVEL1-FUNCTITON
  [Passed]-ItLosMem007-LOS-MEM-LEVEL1-FUNCTITON
  [Passed]-ItLosMem008-LOS-MEM-LEVEL1-FUNCTITON
  [Passed]-ItLosMem009-LOS-MEM-LEVEL1-FUNCTITON
  [Passed]-ItLosMem010-LOS-MEM-LEVEL1-FUNCTITON
  [Passed]-ItLosMem011-LOS-MEM-LEVEL1-FUNCTITON
  [Passed]-ItLosMem012-LOS-MEM-LEVEL1-FUNCTITON
  [Passed]-ItLosMem013-LOS-MEM-LEVEL1-FUNCTITON
  [Passed]-ItLosMem014-LOS-MEM-LEVEL1-FUNCTITON
  [Passed]-ItLosMem015-LOS-MEM-LEVEL1-FUNCTITON
  [Passed]-ItLosMem016-LOS-MEM-LEVEL1-FUNCTITON
  [Passed]-ItLosMem017-LOS-MEM-LEVEL0-FUNCTITON
  [Passed]-ItLosMem018-LOS-MEM-LEVEL1-FUNCTITON
  [Passed]-ItLosMem019-LOS-MEM-LEVEL1-FUNCTITON
  [Passed]-ItLosMem020-LOS-MEM-LEVEL1-FUNCTITON
  [Passed]-ItLosMem040-LOS-MEM-LEVEL1-FUNCTITON
  [Passed]-ItLosMem045-LOS-MEM-LEVEL1-FUNCTITON
  [Passed]-ItLosMem046-LOS-MEM-LEVEL1-FUNCTITON
  [Passed]-ItLosMem047-LOS-MEM-LEVEL1-FUNCTITON

--- Test End ---

failed count : 0, success count:23

## 增加测试用例：
验证不同内存区域间隔不能释放、验证内存区域追加到主堆内存池，内存池独立初始化为独立的内存池。
testsuits\sample\kernel\mem\It_los_mem_046.c
testsuits\sample\kernel\mem\It_los_mem_047.c

类型	指派人员	状态
审查	Denny 已审查通过 SimonLi wangmihu	已完成 (1/1人)
测试	openharmony_ci 已测试通过	已完成 (1/1人)

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