* [improve](dynamic table) refine SegmentWriter columns writer generate
```
Dynamic Block consists of two parts, dynamic part of columns and static part of columns
static dynamic
| ----- | ------- |
the static ones are original _tablet_schame columns
the dynamic ones are auto generated and extended from file scan.
```
**We should only consisder to use Block info to generte columns when it's a dynamic table load procudure.**
And seperate the static ones and dynamic ones
* test
