CaveSH nede piece renames

[Aveno2]

suggesting these so its clearer to developers what pieces are specific to nede burials so they aren't used accidentally, or copied across in retextures for other cave sets

T_Mw_CaveSH_Hall_34 -> T_Mw_CaveSH_Hall_Ned1 T_Mw_CaveSH_Hall_11 -> T_Mw_CaveSH_Hall_Ned2 T_Mw_CaveSH_R_Side_04 -> T_Mw_CaveSH_R_Side_Ned1 T_Mw_CaveSH_R_Cor_06 -> T_Mw_CaveSH_R_Cor_Ned1 T_Mw_CaveSH_RockB_06 -> T_Mw_CaveSH_RockB_Ned1 T_Mw_CaveSH_RockB_07 -> T_Mw_CaveSH_RockB_Ned2 T_Mw_CaveSH_RockB_08 -> T_Mw_CaveSH_RockB_Ned3

[antonisauren]

There isn't anything nede-specific in them. Imo they could be used for any carved niche if needed.

[Aveno2]

they're specific insofar as the usecase is for nedic burials they could be used for other things, but shouldn't be as it'd detract from their intended use imo