[roottest] enable bill02 test

Check that uncompressed file size is large enough
to store 10000 integers.

Remove old dictionary, executable, .rootrc file

Test was not running before

Author: linev

roottest/root/io/bill02/.rootrc

@@ -0,0 +1,12 @@
+ROOTTEST_GENERATE_DICTIONARY(libBill02MyObject
+                             MyObject.h
+                             LINKDEF LinkDef.h
+                             NO_ROOTMAP NO_CXXMODULE
+                             FIXTURES_SETUP root-io-bill02-dict-fixture)
+
+ROOTTEST_ADD_TEST(checksize
+                  MACRO run.C
+                  ROOTEXE_OPTS -e "gInterpreter->AddIncludePath(\"-I${CMAKE_CURRENT_SOURCE_DIR}\")"
+                               -e "(void)gSystem->Load(\"libBill02MyObject\")"
+                  OUTREF checksize.ref
+                  FIXTURES_REQUIRED root-io-bill02-dict-fixture)