merged phys/module_fr_fire_phys.F from wrf-fire repo to WRF4

by FileMerge/opendiff on Mac Xtools

*** LEFT: 3a1ebfb9c92f89a

cherry picked openwfm/wrf-fire@8547c61a39
May 16 15:33:50 2016 -0600 akochans <akochans@colibri.ucdenver.pvt>
Corrected descriptions and units of the fuel moisture model variables in registry.fire

based on openwfm/wrf-fire@a4936d5415
Aug 18 14:39:52 2012 -0600 Jan Mandel
replacing fmoist_init in namelist.input by fmc_gc_initialization in namelist.fire

*** RIGHT: 132444f0db67

cherry picked  http://github.com/openwfm/wrf-fire/commit/5a6c4b8c06
Sep 26 20:01:45 2011 -0600 Jan Mandel, using variable fuel moisture in fmc_g

cherry picked http://github.com/openwfm/wrf-fire/commit/f8193dad36
Sep 25 21:49:37 2011 -0600 Jan Mandel, adding ground fuel moisture variable fmc_g

based on wrf-model@0f296f9c0f674 branch develop
Jan 14 13:29:28 2019 -0700 Dave Gill, BUG FIX, BUG FIX, remove PX updates that packaged RA and RS (wrf-model#763)

see  https://www.openwfm.org/wiki/WRF-SFIRE_fuel_moisture_model_commits
     https://www.openwfm.org/wiki/Tracking_WRF_Fire/SFIRE_changes
     https://www.openwfm.org/wiki/Porting_WRF-SFIRE_fuel_moisture_model_to_WRF4