整理了Serein.Library项目类文件，IDynamicContext、DynamicContext接口名称及实现类改为IFlowContext、FlowContext，使其与流程其它接口类命名风格统一。

Library/Serein.Library.csproj

@@ -23,15 +23,12 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <Compile Remove="Entity\Base\**" />
     <Compile Remove="Http\**" />
     <Compile Remove="Network\Socket\**" />
     <Compile Remove="Utils\SerinExpression\**" />
-    <EmbeddedResource Remove="Entity\Base\**" />
     <EmbeddedResource Remove="Http\**" />
     <EmbeddedResource Remove="Network\Socket\**" />
     <EmbeddedResource Remove="Utils\SerinExpression\**" />
-    <None Remove="Entity\Base\**" />
     <None Remove="Http\**" />
     <None Remove="Network\Socket\**" />
     <None Remove="Utils\SerinExpression\**" />