Post-conversion cleanup

[MaximeVdB]

Now that the translation is finished, it was time for some cleanup/restructuring.

The most noticeable changes are:

• there is only one shared library now (libaquacrop.so)
• the executables are now just called aquacrop (instead of PluginBareV70)
• FORTRAN_EXE=1 is now the default (instead 0)

Edit: the full testsuite now passes for both DEBUG=0 and DEBUG=1, both in the Singularity image and with foss-2018a. This was done with the (now-default) FORTRAN_EXE=1 option. For the FORTRAN_EXE=0 option, the same combinations were tested, but only for the Harvest test (this is OK since the Fortran-Pascal coupling is now reduced to a trivial StartTheProgram() call).

[mbechtold]

Forget my last comment. Of course, Europe test still missing. Saw also you merged the getters and setters already into this branch. Will use this for the LIS coupling now.

[MaximeVdB]

As you can see in 673522f, there was still one failure for the Harvest test, but only for DEBUG=0 and with the Singularity image. That one is also solved now (though the real cause rather seems to be a bug in the v10.2.1 gfortran compiler).