When CRC error occurs, it is generally caused by incomplete data in the file, so error information should be given to prompt the user.

Merge pull request !601 from LiHongzhang/fix_caching

Merge pull request !609 from zhangyunshu/zys_reconstruct_graph

1. New a thread to load detail info. Loading detail info takes too much time,
so the summary list and lineage can not be loaded timely.
2. Add a status for DetailCacheManager to indicate it is INIT, LOADING or DONE.
3. Update UT/ST.

Main features:

1. Use the ComputingResourceManager to manage all computing workers.
2. Ensure fair worker number between summary directories at first. So every summary directories in cache will be loaded simultaneously.
3. When a summary directory is loaded, it's worker will be released, and other unfinished summary directories can use the released workers to speed up. This way we solved the slow worker problem.

Code changes:

1. Added computing_resource_mgr.py
2. Passed ComputingResourceManager instances instead of workers_count
3. Simplified the _load_single_fine() function a bit.

Merge pull request !106 from wenkai/wk02_cache_3cp1

2. Optimize the python api of graph and graph_processor
3. delete unconnected const and parameter nodes
4. fix subnode count bug and fix name scope node have not input and output bug
5. add cyclic graph and high degree graph json file
6. update parameter node to polymeric scope node
7. delele all deepcopy to improve performance
8. add data type and update the attribute scope of edge to independtend_layout
9. add add_parameter_nodes function
10. delete scope attribute in input and optimiza code
11. parse parameter data type and shape
12. fix ut and st for graph
13. fix pylint
14. fix pylint arguments-differ
15. add scope proxy node instead of node

Merge pull request !58 from wenkai/wk0422

Merge pull request !53 from ougongchang/fixbug_pb_file

Merge pull request !48 from luopengting/lineage_lpt

Merge pull request !42 from zhangyunshu/zys_histogram_api

fix ut for changes

Merge pull request !10 from ougongchang/fixbug_exception