Define public purpose of easements on state lands

This bill clarifies the definition of "public purpose" for granting easements on Montana state lands. It specifically updates the legal list of acceptable uses to include conservation easements for the Department of Fish, Wildlife, and Parks (for parcels surrounded by their land as of 2001) and for certain nonprofit conservation groups. The bill also formally lists cemeteries, community buildings, and public trails as qualifying public uses, while maintaining existing provisions for schools, parks, and utility infrastructure. This change directly affects landowners, state agencies, and nonprofits seeking easements on state lands.