meson: make bindings test work without efl installed

there is the need to assemble the search path where the .so files can be
found. This is now added to the test suite.

In future this could ne added to meson directory. Since this is a
general csharp problem.

src/tests/efl_mono/meson.build

@@ -63,7 +63,29 @@ efl_mono_suite = executable('efl-mono-suite',
   link_with : [efl_mono, efl_mono_test],
 )
 
+env = environment()
+env.set('MONO_PATH', efl_mono_test_suite_path )
+
+config_libs = ['eina', 'ecore', 'eo', 'efl', 'evas', 'eldbus', 'elementary']
+load_lib = ''
+
+foreach config : config_libs
+  lib = get_variable(config+'_lib')
+  path = lib.full_path().split('/')
+  repaired_path = ''
+  prev = ''
+
+  foreach p : path
+    repaired_path += prev
+    prev = p+'/'
+  endforeach
+
+  load_lib += repaired_path+':'
+endforeach
+
+env.set('LD_LIBRARY_PATH', load_lib)
+
 test('efl-mono-suite',
   efl_mono_suite,
-  env : ['MONO_PATH='+efl_mono_test_suite_path]
+  env : env
 )