Delete ESMFL_Mod.F90 and migrate all internal callers (#4862) (#4867)

- Delete base/ESMFL_Mod.F90 and remove from CMakeLists.txt
- Drop use ESMFL_Mod from Base.F90 and StateMasking.F90 (no symbols used)
- Move BundleAddState_ into SimpleBundleMod.F90 as a private routine
- Move ESMFL_GridCoordGet, ESMFL_HALO_R4_2D, ESMFL_FCOLLECT_{I4,R4,R8}
  into MAPL_LocStreamMod.F90 as private routines

Author: tclune

base/Base.F90

@@ -2,7 +2,6 @@
 
 module MAPLBase_Mod
 
-  use ESMFL_Mod         !  Stopgap
   use MAPL_ExceptionHandling
 
    use NCIOMod

base/CMakeLists.txt

@@ -1,7 +1,6 @@
 esma_set_this (OVERRIDE MAPL.base)
 
 set (srcs
-  ESMFL_Mod.F90
   FileMetadataUtilities.F90
   FileMetadataUtilitiesVector.F90       SimpleBundleMod.F90
   MaplGrid.F90