[Feature] Support OpenFinData

[Skyfall-xzz]

Support OpenFinData Dataset.

Motivation

Add more available datasets will make Opencompass more easy to use thus obtain broader impact.

Modification

Change reading and processing configs for OpenFindata. Modifications are mostly in configs/datasets and opencompass/datasets folders.

Use cases

In evaluation scripts, add OpenFinData dataset as other datasets by using
from .datasets.OepnFinData.OpenFinData_gen import OpenFinData_datasets

Example Results

dataset                             version    metric    mode      qwen-14b-chat-hf    internlm2-chat-7b-hf
----------------------------------  ---------  --------  ------  ------------------  ----------------------
OpenFinData-emotion_identification  b64193     accuracy  gen                  85.33                   78.67
OpenFinData-entity_disambiguation   b64193     accuracy  gen                  52                      68
OpenFinData-financial_facts         b64193     accuracy  gen                  70.67                   46.67
OpenFinData-data_inspection         a846b7     accuracy  gen                  53.33                   51.67
OpenFinData-financial_terminology   a846b7     accuracy  gen                  84                      73.33
OpenFinData-metric_calculation      a846b7     accuracy  gen                  55.71                   68.57
OpenFinData-value_extraction        a846b7     accuracy  gen                  84.29                   71.43
OpenFinData-intent_understanding    f0bd9e     accuracy  gen                  88                      86.67
OpenFinData-entity_recognition      81aeeb     accuracy  gen                  68                      84

Checklist

Before PR:

• Pre-commit or other linting tools are used to fix the potential lint issues.
• Bug fixes are fully covered by unit tests, the case that causes the bug should be added in the unit tests.
• The modification is covered by complete unit tests. If not, please add more unit test to ensure the correctness.
• The documentation has been modified accordingly, like docstring or example tutorials.

After PR:

• If the modification has potential influence on downstream or other related projects, this PR should be tested with those projects.
• CLA has been signed and all committers have signed the CLA in this PR.

[bittersweet1999]

LGTM

[tonysy]

Please add a README.md for introducing this dataset(include the data preparation, example command and results)
For example: https://github.com/open-compass/OpenCompass/blob/main/configs/datasets/IFEval/IFEval.md