Added KMMLU evaluation method and changed ReadMe (#1447)

* update kmmlu default formatting

* Update _default_kmmlu_yaml

* Delete lm_eval/tasks/kmmlu/utils.py

* new tasks implemented

* add direct tasks

* update direct evaluate

* update direct eval

* add cot sample

* update cot

* add cot

* Update _cot_kmmlu_yaml

* add kmmlu90

* Update and rename _cot_kmmlu.yaml to _cot_kmmlu_yaml

* Create kmmlu90.yaml

* Update _cot_kmmlu_yaml

* add direct

* Update _cot_kmmlu_yaml

* Update and rename kmmlu90.yaml to kmmlu90_cot.yaml

* Update kmmlu90_direct.yaml

* add kmmlu hard

* Update _cot_kmmlu_yaml

* Update _cot_kmmlu_yaml

* update cot

* update cot

* erase typo

* Update _cot_kmmlu_yaml

* update cot

* Rename dataset to match k-mmlu-hard

* removed kmmlu90

* fixed name 'kmmlu_cot' to 'kmmlu_hard_cot' and revised README

* applied pre-commit before pull requests

* rename datasets and add notes

* Remove DS_Store cache

* Update lm_eval/tasks/kmmlu/README.md
Co-authored-by: Hailey Schoelkopf <65563625+haileyschoelkopf@users.noreply.github.com>

* Change citations and reflect reviews on version

* Added kmmlu_hard and fixed other errors

* fixing minor errors

* remove duplicated

* Rename files

* try ".index"

* minor fix

* minor fix again

* fix revert.

* minor fix. thank for hailey

---------
Co-authored-by: GUIJIN SON <spthsrbwls123@yonsei.ac.kr>
Co-authored-by: Hailey Schoelkopf <65563625+haileyschoelkopf@users.noreply.github.com>

lm_eval/tasks/kmmlu/hard/kmmlu_hard_real_estate.yaml

+dataset_name: real_estate
+include: _hard_kmmlu_yaml
+task: kmmlu_hard_real_estate

lm_eval/tasks/kmmlu/hard/kmmlu_hard_refrigerating_machinery.yaml

+dataset_name: refrigerating_machinery
+include: _hard_kmmlu_yaml
+task: kmmlu_hard_refrigerating_machinery

lm_eval/tasks/kmmlu/hard/kmmlu_hard_social_welfare.yaml

+dataset_name: social_welfare
+include: _hard_kmmlu_yaml
+task: kmmlu_hard_social_welfare

lm_eval/tasks/kmmlu/hard/kmmlu_hard_taxation.yaml

+dataset_name: taxation
+include: _hard_kmmlu_yaml
+task: kmmlu_hard_taxation

lm_eval/tasks/kmmlu/hard/kmmlu_hard_telecommunications_and_wireless_technology.yaml

+dataset_name: telecommunications_and_wireless_technology
+include: _hard_kmmlu_yaml
+task: kmmlu_hard_telecommunications_and_wireless_technology

lm_eval/tasks/kmmlu/kmmlu_accounting.yaml

-"dataset_name": "Accounting"
-"include": "_default_kmmlu_yaml"
-"task": "kmmlu_accounting"

lm_eval/tasks/kmmlu/kmmlu_agricultural_sciences.yaml

-"dataset_name": "Agricultural-Sciences"
-"include": "_default_kmmlu_yaml"
-"task": "kmmlu_agricultural_sciences"

lm_eval/tasks/kmmlu/kmmlu_aviation_engineering_and_maintenance.yaml

-"dataset_name": "Aviation-Engineering-and-Maintenance"
-"include": "_default_kmmlu_yaml"
-"task": "kmmlu_aviation_engineering_and_maintenance"

lm_eval/tasks/kmmlu/kmmlu_biology.yaml

-"dataset_name": "Biology"
-"include": "_default_kmmlu_yaml"
-"task": "kmmlu_biology"

lm_eval/tasks/kmmlu/kmmlu_chemical_engineering.yaml

-"dataset_name": "Chemical-Engineering"
-"include": "_default_kmmlu_yaml"
-"task": "kmmlu_chemical_engineering"

lm_eval/tasks/kmmlu/kmmlu_chemistry.yaml

-"dataset_name": "Chemistry"
-"include": "_default_kmmlu_yaml"
-"task": "kmmlu_chemistry"

lm_eval/tasks/kmmlu/kmmlu_civil_engineering.yaml

-"dataset_name": "Civil-Engineering"
-"include": "_default_kmmlu_yaml"
-"task": "kmmlu_civil_engineering"

lm_eval/tasks/kmmlu/kmmlu_computer_science.yaml

-"dataset_name": "Computer-Science"
-"include": "_default_kmmlu_yaml"
-"task": "kmmlu_computer_science"

lm_eval/tasks/kmmlu/kmmlu_construction.yaml

-"dataset_name": "Construction"
-"include": "_default_kmmlu_yaml"
-"task": "kmmlu_construction"

lm_eval/tasks/kmmlu/kmmlu_criminal_law.yaml

-"dataset_name": "Criminal-Law"
-"include": "_default_kmmlu_yaml"
-"task": "kmmlu_criminal_law"

lm_eval/tasks/kmmlu/kmmlu_ecology.yaml

-"dataset_name": "Ecology"
-"include": "_default_kmmlu_yaml"
-"task": "kmmlu_ecology"

lm_eval/tasks/kmmlu/kmmlu_economics.yaml

-"dataset_name": "Economics"
-"include": "_default_kmmlu_yaml"
-"task": "kmmlu_economics"

lm_eval/tasks/kmmlu/kmmlu_education.yaml

-"dataset_name": "Education"
-"include": "_default_kmmlu_yaml"
-"task": "kmmlu_education"

lm_eval/tasks/kmmlu/kmmlu_electrical_engineering.yaml

-"dataset_name": "Electrical-Engineering"
-"include": "_default_kmmlu_yaml"
-"task": "kmmlu_electrical_engineering"

lm_eval/tasks/kmmlu/kmmlu_electronics_engineering.yaml

-"dataset_name": "Electronics-Engineering"
-"include": "_default_kmmlu_yaml"
-"task": "kmmlu_electronics_engineering"