add mc tasks

lm_eval/tasks/mrl/mc/mni_beng.yaml

+include: '_template_mc'
+task: mrl_mni_beng
+dataset_name: mni_beng

lm_eval/tasks/mrl/mc/nag_latn.yaml

+include: '_template_mc'
+task: mrl_nag_latn
+dataset_name: nag_latn

lm_eval/tasks/mrl/mc/nld_latn.yaml

+include: '_template_mc'
+task: mrl_nld_latn
+dataset_name: nld_latn

lm_eval/tasks/mrl/mc/nno_latn.yaml

+include: '_template_mc'
+task: mrl_nno_latn
+dataset_name: nno_latn

lm_eval/tasks/mrl/mc/nob_latn.yaml

+include: '_template_mc'
+task: mrl_nob_latn
+dataset_name: nob_latn

lm_eval/tasks/mrl/mc/npi_deva.yaml

+include: '_template_mc'
+task: mrl_npi_deva
+dataset_name: npi_deva

lm_eval/tasks/mrl/mc/pcm_latn.yaml

+include: '_template_mc'
+task: mrl_pcm_latn
+dataset_name: pcm_latn

lm_eval/tasks/mrl/mc/pes_arab.yaml

+include: '_template_mc'
+task: mrl_pes_arab
+dataset_name: pes_arab

lm_eval/tasks/mrl/mc/pol_latn.yaml

+include: '_template_mc'
+task: mrl_pol_latn
+dataset_name: pol_latn

lm_eval/tasks/mrl/mc/por_latn_braz.yaml

+include: '_template_mc'
+task: mrl_por_latn_braz
+dataset_name: por_latn_braz

lm_eval/tasks/mrl/mc/por_latn_port.yaml

+include: '_template_mc'
+task: mrl_por_latn_port
+dataset_name: por_latn_port

lm_eval/tasks/mrl/mc/ron_latn.yaml

+include: '_template_mc'
+task: mrl_ron_latn
+dataset_name: ron_latn

lm_eval/tasks/mrl/mc/rwr_deva.yaml

+include: '_template_mc'
+task: mrl_rwr_deva
+dataset_name: rwr_deva

lm_eval/tasks/mrl/mc/sin_sinh.yaml

+include: '_template_mc'
+task: mrl_sin_sinh
+dataset_name: sin_sinh

lm_eval/tasks/mrl/mc/slk_latn.yaml

+include: '_template_mc'
+task: mrl_slk_latn
+dataset_name: slk_latn

lm_eval/tasks/mrl/mc/slk_latn_sari.yaml

+include: '_template_mc'
+task: mrl_slk_latn_sari
+dataset_name: slk_latn_sari

lm_eval/tasks/mrl/mc/slv_latn.yaml

+include: '_template_mc'
+task: mrl_slv_latn
+dataset_name: slv_latn

lm_eval/tasks/mrl/mc/slv_latn_cerk.yaml

+include: '_template_mc'
+task: mrl_slv_latn_cerk
+dataset_name: slv_latn_cerk

lm_eval/tasks/mrl/mc/snd_arab.yaml

+include: '_template_mc'
+task: mrl_snd_arab
+dataset_name: snd_arab

lm_eval/tasks/mrl/mc/snd_deva.yaml

+include: '_template_mc'
+task: mrl_snd_deva
+dataset_name: snd_deva