v2.0.0

What's Changed

• Add NVHPC compile option to use single-precision by @namo626 in #27
• fix: cmplrflags.mk when using Intel compilers by @namo626 in #29
• Renumber rainfall options
  Some options are currently in conflict. The new options are:
  • 1 for constant rain
  • 2 for OWI rain (needs OWI input)
  • 3 for R-CLIPER
  • 4 for IPET

Full Changelog: v1.2.0...v2.0.0