Add reference test code

tests/regression/test-debug/makelib.sh

+gnatmake -c orchestrator.adb
+gnatbind -n -Lliborchestrator orchestrator
+gnatmake -c b~orchestrator.adb
+gcc -shared -fPIC -o liborchestrator.so b~orchestrator.o orchestrator.o taste_basictypes.o adaasn1rtl.o -lgnat

tests/regression/test-debug/test.py

+#!/usr/bin/env python
+''' test script showing how to view the model's internal state '''
+from ctypes import *
+
+# load the shared object
+test=CDLL('./liborchestrator.so')
+test.liborchestratorinit()
+
+get_value=test.fixed_value
+get_value.restype = c_char_p
+
+get_size = test.fixed_size
+get_size.restype = c_long
+
+size = get_size()
+val = get_value()
+print 'size =', size
+
+# We know the size, cast it to an array of bytes that can then be converted to swig
+as_bytes = cast(val, POINTER((c_byte *size)))
+print 'value =', val, as_bytes.contents[0], as_bytes.contents[1]
+