!8 【mainline】添加差异yaml文件

Merge pull request !8 from xinghe/master

nspr-4.20.0-vs-4.26.0.yaml

@@ -0,0 +1,25 @@
+name: nspr
+old_version: 4.20.0
+new_version: 4.26.0
+interface_differences:
+- type: 'feature'
+  item: 新增runstatedir
+  diff: 记录可修改的每个过程的数据
+  influence: 功能增强，不影响
+- type: 'ABI'
+  item: prlog.h新增PR_ASSERT_ARG(_expr) PR_ASSERT(_expr)
+  diff: 避免了编译器，警告：未使用的变量
+  influence: 功能增强、优化
+- type: 'feature'
+  item: prsystem.h新增PR_SI_RELEASE_BUILD类型
+  diff: 通过PR_GetSystemInfo可获得的信息类型
+  influence: 功能增强
+- type: 'CLI'
+  item: '删除--enable-symbian-target
+			--enable-n32
+			--with-gonk=DIR
+			--with-symbian-sdk=SYMBIAN_SDK_DIR
+			--with-bthreads'
+  diff: 性能优化
+  influence: 性能优化，影响小
+remark: '无影响'