Bugfix for loading .so file from the third party called by Linux version of HAWC2

src/dtu_we_controller/dtu_we_controller.f90

@@ -650,6 +650,16 @@ subroutine initstring(istring) bind(c,name='initstring')
             write(6,'(A)') 'HAWC2 found additional control parameter file: '//trim(additionalCtrlParamFilename)
             ! TODO: set a flag here
             exit
+        else if (name(len_trim(name)-len_trim(ext(i_ext))+1:len_trim(name))==trim(ext(3))) then
+            write(6,'(A)') 'HAWC2 found additional data file: '//trim(adjustl(name))
+            ! TODO: set a flag here
+            exit
+
+        else if (name(len_trim(name)-len_trim(ext(i_ext))+1:len_trim(name))==trim(ext(4))) then
+            external_dll%filename = trim(adjustl(name))
+            write(6,'(A)') 'HAWC2 found controller .so file: "'//trim(external_dll%filename)//'" from third party.'
+            ! TODO: set a flag here
+            exit
         end if
     enddo
 end subroutine initstring