add mc tasks

lm_eval/tasks/mrl/mc/spa_latn_peru.yaml

+include: '_template_mc'
+task: mrl_spa_latn_peru
+dataset_name: spa_latn_peru

lm_eval/tasks/mrl/mc/srp_cyrl.yaml

+include: '_template_mc'
+task: mrl_srp_cyrl
+dataset_name: srp_cyrl

lm_eval/tasks/mrl/mc/srp_latn.yaml

+include: '_template_mc'
+task: mrl_srp_latn
+dataset_name: srp_latn

lm_eval/tasks/mrl/mc/swe_latn.yaml

+include: '_template_mc'
+task: mrl_swe_latn
+dataset_name: swe_latn

lm_eval/tasks/mrl/mc/tam_taml.yaml

+include: '_template_mc'
+task: mrl_tam_taml
+dataset_name: tam_taml

lm_eval/tasks/mrl/mc/tgl_latn.yaml

+include: '_template_mc'
+task: mrl_tgl_latn
+dataset_name: tgl_latn

lm_eval/tasks/mrl/mc/tha_thai.yaml

+include: '_template_mc'
+task: mrl_tha_thai
+dataset_name: tha_thai

lm_eval/tasks/mrl/mc/tur_latn.yaml

+include: '_template_mc'
+task: mrl_tur_latn
+dataset_name: tur_latn

lm_eval/tasks/mrl/mc/uig_arab.yaml

+include: '_template_mc'
+task: mrl_uig_arab
+dataset_name: uig_arab

lm_eval/tasks/mrl/mc/ukr_cyrl.yaml

+include: '_template_mc'
+task: mrl_ukr_cyrl
+dataset_name: ukr_cyrl

lm_eval/tasks/mrl/mc/urd_arab.yaml

+include: '_template_mc'
+task: mrl_urd_arab
+dataset_name: urd_arab

lm_eval/tasks/mrl/mc/urd_latn.yaml

+include: '_template_mc'
+task: mrl_urd_latn
+dataset_name: urd_latn

lm_eval/tasks/mrl/mc/urh_latn.yaml

+include: '_template_mc'
+task: mrl_urh_latn
+dataset_name: urh_latn

lm_eval/tasks/mrl/mc/uzn_latn.yaml

+include: '_template_mc'
+task: mrl_uzn_latn
+dataset_name: uzn_latn

lm_eval/tasks/mrl/mc/vie_latn.yaml

+include: '_template_mc'
+task: mrl_vie_latn
+dataset_name: vie_latn

lm_eval/tasks/mrl/mc/yor_latn.yaml

+include: '_template_mc'
+task: mrl_yor_latn
+dataset_name: yor_latn

lm_eval/tasks/mrl/mc/yue_hant.yaml

+include: '_template_mc'
+task: mrl_yue_hant
+dataset_name: yue_hant

lm_eval/tasks/mrl/mc/zsm_latn.yaml

+include: '_template_mc'
+task: mrl_zsm_latn
+dataset_name: zsm_latn

lm_eval/tasks/mrl/mc/zul_latn.yaml

+include: '_template_mc'
+task: mrl_zul_latn
+dataset_name: zul_latn