Ecosystem dynamics compatible FATES-HYDRO

This release provides the core functionality that enables FATES-HYDRO to work with a dynamic ecosystem. This functionality accounts for the fate of water in dying plants, growing plants, and newly recruited plants. This release also has added in a first pass at restart capabilities with FATES-HYDRO, although initial testing shows restarts with dynamic FATES-HYDRO is incomplete. Also note, that while FATES-HYDRO has shown stable and publication worthy results thus far, this is still considered unsupported, "beta level" code. Those using it should consider it still under development as of this release, and should consult with Chonggang Xu and Bradley Christoffersen. Authors are Chonggang Xu, Bradley Christoffersen and Ryan Knox, with consultation from Yilin Fang, Junyan Ding and others on the FATES development team.