* stat: initialize common block.
* Move debug_init.f90/stat_init.f90 to dbgini.f/staini.f.
In cases where one has 2 fortran compilers (F77+F90), the reference code
base and (missing) related common initialisations will be compiled
consistently by the same (F77) compiler. F90 will handle ICB (f2003-f2008)
that could not be compiled by F77.
Note: in F77, code starts at col 7, continuation line with & at col 6,
length line is limited, names must be smaller than 7 chars (no underscore).
* [BUG FIX] compile dbgini.f staini.f with AND without ICB.